vignettes/cv_versatile.R
In MaaniBeigy/DescObs: Versatile Exploration of Data
## ----setup, include=FALSE------------------------------------------------
knitr::opts_chunk$set(echo = TRUE)
## ----echo=FALSE, warning=FALSE, message=FALSE, include = FALSE-----------
library(dplyr)
library(boot)
x <- c(
0.2, 0.5, 1.1, 1.4, 1.8, 2.3, 2.5, 2.7, 3.5, 4.4,
4.6, 5.4, 5.4, 5.7, 5.8, 5.9, 6.0, 6.6, 7.1, 7.9
)
cv_versatile <- function(
x, # Currently there are methods for numeric vectors
na.rm = FALSE, # indicating whether NA values should be stripped
digits = 1, # digits of output after rounding. default is 4
method = NULL, # method for the computation of confidence interval (CI)
correction = FALSE, # indicating whether to compute the unbiased statistics
alpha = 0.05, # The allowed type I error probability
R = NULL, # integer indicating the number of bootstrap replicates
...
) {
# library(MBESS)
# require(dplyr)
# require(SciViews)
# require(boot)
if (missing(x) || is.null(x)) {
stop("object 'x' not found")
} else if (!missing(x)) {
x <- x
}
if (!is.numeric(x)) {
stop("argument is not a numeric vector: returning NA")
return(NA_real_)
}
na.rm <- na.rm # removes NAs if TRUE
if (na.rm == TRUE) {
x <- x[!is.na(x)]
} else if (anyNA(x)) {
stop(
"missing values and NaN's not allowed if 'na.rm' is FALSE"
)
}
if (is.null(digits)) {
digits = 1
}
if (is.null(R)) {
R = 1000
}
digits <- digits # digits required for rounding
shortest_length <- data.frame( # "a" and "b" values for shortest-length CI
v = c( # degrees of freedom
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 40, 50, 60, 70, 80, 90,
100, 150, 200, 250, 300, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 300, 2, 3, 4,
5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 26, 27, 28, 29, 30, 40, 50, 60, 70, 80, 90,
100, 150, 200, 250, 300
),
al = c( # al is the allowed type I error probability
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01
),
a = c( # a is an attribute for the length of CI
0.2065, 0.5654, 1.02, 1.5352, 2.093, 2.6828, 3.2981, 3.9343,
4.5883, 5.2573, 5.9397, 6.6337, 7.3382, 8.0521, 8.7745,
9.5047, 10.2421, 10.9861, 11.7362, 12.4919, 13.253,
14.0191, 14.7899, 15.565, 16.3443, 17.1275, 17.9144,
18.7049, 19.4987, 27.5919, 35.9012, 44.3661, 52.9501,
61.629, 70.386, 79.2086, 124.0372, 169.6646, 215.8057,
262.3132, 0.1015, 0.3449, 0.6918, 1.1092, 1.5776,
2.0851, 2.6235, 3.1874, 3.7729, 4.3768, 4.9967,
5.6308, 6.2776, 6.9357, 7.6042, 8.282, 8.9685,
9.6629, 10.3647, 11.0733, 11.7882, 12.5092,
13.2357, 13.9675, 14.7043, 15.4458, 16.1917,
16.9419, 17.6961, 25.4233, 33.4085, 41.5794, 49.8923,
58.3183, 66.8374, 75.4347, 119.2737, 164.0642,
209.4667, 255.3057, 0.02, 0.114, 0.2937, 0.5461,
0.8567, 1.2143, 1.6107, 2.0394, 2.4958, 2.976, 3.4771,
3.9968, 4.5329, 5.084, 5.6487, 6.2256, 6.8139, 7.4126,
8.0209, 8.6383, 9.264, 9.8976, 10.5385, 11.1864, 11.8408,
12.5014, 13.1678, 13.8397, 14.517, 21.5331, 28.8879,
36.4863, 44.2711, 52.2044, 60.2597, 68.4177, 110.3262,
153.4834, 197.444, 241.9776
),
b = c( # b is an attribute for the length of CI
12.5208, 13.1532, 14.18, 15.3498, 16.5807, 17.8391,
19.1099, 20.3848, 21.6598, 22.9325, 24.2016,
25.4666, 26.7269, 27.9825, 29.2334, 30.4796,
31.7212, 32.9585, 34.1915, 35.4205, 36.6455,
37.8668, 39.0844, 40.2986, 41.5095, 42.7171,
43.9217, 45.1234, 46.3222, 58.1755, 69.8342,
81.3479, 92.7487, 104.0584, 115.2925, 126.4628,
181.6128, 235.9748, 289.8273, 343.3155, 15.1194,
15.5897, 16.5735, 17.7432, 18.9954, 20.2863,
21.5953, 22.9118, 24.2303, 25.5476, 26.8618,
28.1717, 29.4769, 30.777, 32.072, 33.3619,
34.6467, 35.9266, 37.2016, 38.472, 39.7379,
40.9995, 42.257, 43.5105, 44.7601, 46.006,
47.2483, 48.4872, 49.7229, 61.9217, 73.892,
85.6914, 97.3573, 108.9153, 120.3839, 131.7767,
187.9079, 243.1025, 297.691, 351.8461, 20.8264,
20.9856, 21.8371, 22.9867, 24.2618, 25.6017,
26.9749, 28.3643, 29.7602, 31.158, 32.5543,
33.9474, 35.3358, 36.7192, 38.0968, 39.4688,
40.8347, 42.1952, 43.5498, 44.8989, 46.2426,
47.581, 48.9144, 50.2428, 51.5665, 52.8856,
54.2002, 55.5107, 56.8169, 69.6808, 82.2534,
94.6063, 106.7867, 118.8272, 130.7514, 142.5771,
200.6194, 257.4375, 313.462, 368.9185
)
)
if ("kelley" %in% method) {
if (!require(MBESS)) {
warning(
"package 'MBESS' required to calculate Kelley's confidence interval"
)
}
}
cv <- (
sd(x, na.rm = na.rm)/mean(x, na.rm = na.rm) # coefficient of variation
)
cv_corr <- cv * (
(1 - (1/(4 * (length(x) - 1))) + # corrected coefficient of variation
(1/length(x)) * cv^2) +
(1/(2 * (length(x) - 1)^2))
)
if (is.null(method) == TRUE & correction == FALSE) {
return(
list(
method = "cv = sd/mean (may be biased)",
statistics = data.frame(
est = round(cv*100, digits = digits),
row.names = c(" ")
)
)
)
} else if (is.null(method) == TRUE & correction == TRUE) {
return(
list(
method = "Corrected (i.e., unbiased) cv",
statistics = data.frame(
est = round(cv_corr*100, digits = digits),
row.names = c(" ")
)
)
)
} else if (!is.null(method)) {
method <- tolower(method) # convert user's input to lower-case
method <- match.arg( # match the user's input with available methods
arg = method,
choices = c(
"kelley", "mckay", "miller", "vangel", "mahmoudvand_hassani",
"equal_tailed", "shortest_length", "normal_approximation",
"norm","basic", "perc", "bca", "all"
),
several.ok = TRUE
)
}
# calculating cv's bootstrap CI
boot.cv <- boot::boot(
x,
function(x, i) { # coefficient of variation
sd(x[i], na.rm = na.rm)/mean(x[i], na.rm = na.rm)
},
R = R
)
boot.cv_corr <- boot::boot(
x,
function(x, i) { # corrected coefficient of variation
sd(x[i], na.rm = na.rm)/mean(x[i], na.rm = na.rm) * (
(1 - (1/(4 * (length(x[i]) - 1))) +
(1/length(x)) * (
sd(x[i], na.rm = na.rm)/mean(x[i], na.rm = na.rm)
)^2) +
(1/(2 * (length(x) - 1)^2))
)
},
R = R
)
# calculating cv and its CI attributes based on selected methods
if ("kelley" %in% method && correction == FALSE) {
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
est.kelley <- cv # cv is an estimate of CV
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
} else if ("kelley" %in% method && correction == TRUE) {
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
est.kelley <- cv_corr # corrected cv is an estimate of CV
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
} else if ("mckay" %in% method && correction == FALSE) {
if (cv > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv # cv is an estimate of CV
lower.tile.mckay <- cv/sqrt((u1/(v + 1) - 1 )*(cv^2) + u1/v)
upper.tile.mckay <- cv/sqrt((u2/(v + 1) - 1)*(cv^2) + u2/v)
} else if ("mckay" %in% method && correction == TRUE) {
if (cv_corr > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv_corr # corrected cv is an estimate of CV
lower.tile.mckay <- cv_corr/sqrt((u1/(v + 1) - 1 )*(cv_corr^2) + u1/v)
upper.tile.mckay <- cv_corr/sqrt((u2/(v + 1) - 1)*(cv_corr^2) + u2/v)
} else if ("miller" %in% method && correction == FALSE) {
v <- length(x) - 1
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv^2/v) * (0.5 + cv^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv # cv is an estimate of CV
lower.tile.miller <- cv - zu
upper.tile.miller <- cv + zu
} else if ("miller" %in% method && correction == TRUE) {
v <- length(x) - 1
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv_corr^2/v) * (0.5 + cv_corr^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv_corr # corrected cv is an estimate of CV
lower.tile.miller <- cv_corr - zu
upper.tile.miller <- cv_corr + zu
} else if ("vangel" %in% method && correction == FALSE) {
if (cv > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.vangel <- cv # cv is an estimate of CV
lower.tile.vangel <- cv/sqrt(((u1 + 1)/(v + 1) - 1 )*(cv^2) + u1/v)
upper.tile.vangel <- cv/sqrt(((u2 + 1)/(v + 1) - 1)*(cv^2) + u2/v)
} else if ("vangel" %in% method && correction == TRUE) {
if (cv_corr > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.vangel <- cv_corr # corrected cv is an estimate of CV
lower.tile.vangel <- cv_corr/sqrt(
((u1 + 1)/(v + 1) - 1 )*(cv_corr^2) + u1/v
)
upper.tile.vangel <- cv_corr/sqrt(
((u2 + 1)/(v + 1) - 1)*(cv_corr^2) + u2/v
)
} else if ("mahmoudvand_hassani" %in% method && correction == FALSE) {
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv # cv is an estimate of CV
lower.tile.mahmoud <- cv/ul
upper.tile.mahmoud <- cv/uu
} else if ("mahmoudvand_hassani" %in% method && correction == TRUE) {
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv_corr # corrected cv is an estimate of CV
lower.tile.mahmoud <- cv_corr/ul
upper.tile.mahmoud <- cv_corr/uu
} else if ("normal_approximation" %in% method && correction == FALSE) {
cn <- sqrt(1 - (1/(2 * length(x))))
ul <- cn + (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
uu <- cn - (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
est.normaapprox <- cv # cv is an estimate of CV
lower.tile.normaapprox <- cv/ul
upper.tile.normaapprox <- cv/uu
} else if ("normal_approximation" %in% method && correction == TRUE) {
cn <- sqrt(1 - (1/(2 * length(x))))
ul <- cn + (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
uu <- cn - (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
est.normaapprox <- cv_corr # corrected cv is an estimate of CV
lower.tile.normaapprox <- cv_corr/ul
upper.tile.normaapprox <- cv_corr/uu
} else if ("shortest_length" %in% method && correction == FALSE) {
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv # cv is an estimate of CV
lower.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(a_value$a)
} else if ("shortest_length" %in% method && correction == TRUE) {
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv_corr # corrected cv is an estimate of CV
lower.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(a_value$a)
} else if ("equal_tailed" %in% method && correction == FALSE) {
v <- length(x) - 1
tt1 <- qchisq(1 - alpha/2,v)
tt2 <- qchisq(alpha/2,v)
est.equal <- cv # cv is an estimate of CV
lower.tile.equal <- (cv*sqrt(v))/(sqrt(tt1))
upper.tile.equal <- (cv*sqrt(v))/(sqrt(tt2))
} else if ("equal_tailed" %in% method && correction == TRUE) {
v <- length(x) - 1
tt1 <- qchisq(1 - alpha/2,v)
tt2 <- qchisq(alpha/2,v)
est.equal <- cv_corr # corrected cv is an estimate of CV
lower.tile.equal <- (cv_corr*sqrt(v))/(sqrt(tt1))
upper.tile.equal <- (cv_corr*sqrt(v))/(sqrt(tt2))
} else if ("norm" %in% method && correction == FALSE) {
boot.normcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "norm"
)
est.norm <- cv # cv is an estimate of CV
lower.tile.norm <- boot.normcv.ci$normal[2]
upper.tile.norm <- boot.normcv.ci$normal[3]
} else if ("norm" %in% method && correction == TRUE) {
boot.normcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "norm"
)
est.norm <- cv_corr # corrected cv is an estimate of CV
lower.tile.norm <- boot.normcv_corr.ci$normal[2]
upper.tile.norm <- boot.normcv_corr.ci$normal[3]
} else if ("basic" %in% method && correction == FALSE) {
boot.basiccv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.basic <- cv # cv is an estimate of CV
lower.tile.basic <- boot.basiccv.ci$basic[4]
upper.tile.basic <- boot.basiccv.ci$basic[5]
} else if ("basic" %in% method && correction == TRUE) {
boot.basiccv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.basic <- cv_corr # corrected cv is an estimate of CV
lower.tile.basic <- boot.basiccv_corr.ci$basic[4]
upper.tile.basic <- boot.basiccv_corr.ci$basic[5]
} else if ("perc" %in% method && correction == FALSE) {
boot.percentcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.percent <- cv # cv is an estimate of CV
lower.tile.percent <- boot.percentcv.ci$percent[4]
upper.tile.percent <- boot.percentcv.ci$percent[5]
} else if ("perc" %in% method && correction == TRUE) {
boot.percentcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.percent <- cv_corr # corrected cv is an estimate of CV
lower.tile.percent <- boot.percentcv_corr.ci$percent[4]
upper.tile.percent <- boot.percentcv_corr.ci$percent[5]
} else if ("bca" %in% method && correction == FALSE) {
boot.bcacv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.bca <- cv # cv is an estimate of CV
lower.tile.bca <- boot.bcacv.ci$bca[4]
upper.tile.bca <- boot.bcacv.ci$bca[5]
} else if ("bca" %in% method && correction == TRUE) {
boot.bcacv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.bca <- cv_corr # corrected cv is an estimate of CV
lower.tile.bca <- boot.bcacv_corr.ci$percent[4]
upper.tile.bca <- boot.bcacv_corr.ci$percent[5]
} else if (method == "all" && correction == FALSE) {
est.all <- cv # cv is an estimate of CV
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
if (cv > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv # cv is an estimate of CV
lower.tile.mckay <- cv/sqrt((u1/(v + 1) - 1 )*(cv^2) + u1/v)
upper.tile.mckay <- cv/sqrt((u2/(v + 1) - 1)*(cv^2) + u2/v)
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv^2/v) * (0.5 + cv^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv # cv is an estimate of CV
lower.tile.miller <- cv - zu
upper.tile.miller <- cv + zu
tt1 <- qchisq(1 - alpha/2,v)/v
tt2 <- qchisq(alpha/2,v)/v
uu1 <- v*tt1
uu2 <- v*tt2
est.vangel <- cv # cv is an estimate of CV
lower.tile.vangel <- cv/sqrt(((uu1 + 1)/(v + 1) - 1 )*(cv^2) + uu1/v)
upper.tile.vangel <- cv/sqrt(((uu2 + 1)/(v + 1) - 1)*(cv^2) + uu2/v)
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv # cv is an estimate of CV
lower.tile.mahmoud <- cv/ul
upper.tile.mahmoud <- cv/uu
cnt <- sqrt(1 - (1/(2 * length(x))))
ult <- cnt + (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
uut <- cnt - (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
est.normaapprox <- cv # cv is an estimate of CV
lower.tile.normaapprox <- cv/ult
upper.tile.normaapprox <- cv/uut
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv # cv is an estimate of CV
lower.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(a_value$a)
ttt1 <- qchisq(1 - alpha/2,v)
ttt2 <- qchisq(alpha/2,v)
est.equal <- cv # cv is an estimate of CV
lower.tile.equal <- (cv*sqrt(v))/(sqrt(ttt1))
upper.tile.equal <- (cv*sqrt(v))/(sqrt(ttt2))
boot.normcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "norm"
)
est.norm <- cv # cv is an estimate of CV
lower.tile.norm <- boot.normcv.ci$normal[2]
upper.tile.norm <- boot.normcv.ci$normal[3]
boot.basiccv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.basic <- cv # cv is an estimate of CV
lower.tile.basic <- boot.basiccv.ci$basic[4]
upper.tile.basic <- boot.basiccv.ci$basic[5]
boot.percentcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.percent <- cv # cv is an estimate of CV
lower.tile.percent <- boot.percentcv.ci$percent[4]
upper.tile.percent <- boot.percentcv.ci$percent[5]
boot.bcacv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.bca <- cv # cv is an estimate of CV
lower.tile.bca <- boot.bcacv.ci$bca[4]
upper.tile.bca <- boot.bcacv.ci$bca[5]
} else if (method == "all" && correction == TRUE) {
est.all <- cv_corr # cv_corr is an estimate of CV
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
if (cv_corr > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv_corr # cv_corr is an estimate of CV
lower.tile.mckay <- cv_corr/sqrt((u1/(v + 1) - 1 )*(cv_corr^2) + u1/v)
upper.tile.mckay <- cv_corr/sqrt((u2/(v + 1) - 1)*(cv_corr^2) + u2/v)
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv_corr^2/v) * (0.5 + cv_corr^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv_corr # cv_corr is an estimate of CV
lower.tile.miller <- cv_corr - zu
upper.tile.miller <- cv_corr + zu
tt1 <- qchisq(1 - alpha/2,v)/v
tt2 <- qchisq(alpha/2,v)/v
uu1 <- v*tt1
uu2 <- v*tt2
est.vangel <- cv_corr # cv_corr is an estimate of CV
lower.tile.vangel <- cv_corr/sqrt(((uu1 + 1)/(v + 1) - 1 )*(cv_corr^2) + uu1/v)
upper.tile.vangel <- cv_corr/sqrt(((uu2 + 1)/(v + 1) - 1)*(cv_corr^2) + uu2/v)
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv_corr # cv_corr is an estimate of CV
lower.tile.mahmoud <- cv_corr/ul
upper.tile.mahmoud <- cv_corr/uu
cnt <- sqrt(1 - (1/(2 * length(x))))
ult <- cnt + (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
uut <- cnt - (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
est.normaapprox <- cv_corr # cv_corr is an estimate of CV
lower.tile.normaapprox <- cv_corr/ult
upper.tile.normaapprox <- cv_corr/uut
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv_corr # cv_corr is an estimate of CV
lower.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(a_value$a)
ttt1 <- qchisq(1 - alpha/2,v)
ttt2 <- qchisq(alpha/2,v)
est.equal <- cv_corr # cv_corr is an estimate of CV
lower.tile.equal <- (cv_corr*sqrt(v))/(sqrt(ttt1))
upper.tile.equal <- (cv_corr*sqrt(v))/(sqrt(ttt2))
boot.normcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "norm"
)
est.norm <- cv_corr # cv_corr is an estimate of CV
lower.tile.norm <- boot.normcv_corr.ci$normal[2]
upper.tile.norm <- boot.normcv_corr.ci$normal[3]
boot.basiccv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.basic <- cv_corr # cv_corr is an estimate of CV
lower.tile.basic <- boot.basiccv_corr.ci$basic[4]
upper.tile.basic <- boot.basiccv_corr.ci$basic[5]
boot.percentcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.percent <- cv_corr # cv_corr is an estimate of CV
lower.tile.percent <- boot.percentcv_corr.ci$percent[4]
upper.tile.percent <- boot.percentcv_corr.ci$percent[5]
boot.bcacv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.bca <- cv_corr # cv_corr is an estimate of CV
lower.tile.bca <- boot.bcacv_corr.ci$bca[4]
upper.tile.bca <- boot.bcacv_corr.ci$bca[5]
}
# preparing the output based on the selected methods
if ("kelley" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Kelley 95% CI"
),
statistics = data.frame(
est = round(est.kelley * 100, digits = digits),
lower = round(lower.tile.kelley * 100, digits = digits),
upper = round(upper.tile.kelley * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("kelley" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Kelley 95% CI"
),
statistics = data.frame(
est = round(est.kelley * 100, digits = digits),
lower = round(lower.tile.kelley * 100, digits = digits),
upper = round(upper.tile.kelley * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mckay" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with McKay 95% CI"
),
statistics = data.frame(
est = round(est.mckay * 100, digits = digits),
lower = round(lower.tile.mckay * 100, digits = digits),
upper = round(upper.tile.mckay * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mckay" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with McKay 95% CI"
),
statistics = data.frame(
est = round(est.mckay * 100, digits = digits),
lower = round(lower.tile.mckay * 100, digits = digits),
upper = round(upper.tile.mckay * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("miller" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Miller 95% CI"
),
statistics = data.frame(
est = round(est.miller * 100, digits = digits),
lower = round(lower.tile.miller * 100, digits = digits),
upper = round(upper.tile.miller * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("miller" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Miller 95% CI"
),
statistics = data.frame(
est = round(est.miller * 100, digits = digits),
lower = round(lower.tile.miller * 100, digits = digits),
upper = round(upper.tile.miller * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("vangel" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Vangel 95% CI"
),
statistics = data.frame(
est = round(est.vangel * 100, digits = digits),
lower = round(lower.tile.vangel * 100, digits = digits),
upper = round(upper.tile.vangel * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("vangel" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Vangel 95% CI"
),
statistics = data.frame(
est = round(est.vangel * 100, digits = digits),
lower = round(lower.tile.vangel * 100, digits = digits),
upper = round(upper.tile.vangel * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mahmoudvand_hassani" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Mahmoudvand-Hassani 95% CI"
),
statistics = data.frame(
est = round(est.mahmoud * 100, digits = digits),
lower = round(lower.tile.mahmoud * 100, digits = digits),
upper = round(upper.tile.mahmoud * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mahmoudvand_hassani" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Mahmoudvand-Hassani 95% CI"
),
statistics = data.frame(
est = round(est.mahmoud * 100, digits = digits),
lower = round(lower.tile.mahmoud * 100, digits = digits),
upper = round(upper.tile.mahmoud * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("normal_approximation" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Normal Approximation 95% CI"
),
statistics = data.frame(
est = round(est.normaapprox * 100, digits = digits),
lower = round(
lower.tile.normaapprox * 100, digits = digits
),
upper = round(
upper.tile.normaapprox * 100, digits = digits
),
row.names = c(" ")
)
)
)
} else if ("normal_approximation" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Normal Approximation 95% CI"
),
statistics = data.frame(
est = round(est.normaapprox * 100, digits = digits),
lower = round(
lower.tile.normaapprox * 100, digits = digits
),
upper = round(
upper.tile.normaapprox * 100, digits = digits
),
row.names = c(" ")
)
)
)
} else if ("shortest_length" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Shortest-Length 95% CI"
),
statistics = data.frame(
est = round(est.shortest * 100, digits = digits),
lower = round(lower.tile.shortest * 100, digits = digits),
upper = round(upper.tile.shortest * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("shortest_length" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Shortest-Length 95% CI"
),
statistics = data.frame(
est = round(est.shortest * 100, digits = digits),
lower = round(lower.tile.shortest * 100, digits = digits),
upper = round(upper.tile.shortest * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("equal_tailed" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Equal-Tailed 95% CI"
),
statistics = data.frame(
est = round(est.equal * 100, digits = digits),
lower = round(lower.tile.equal * 100, digits = digits),
upper = round(upper.tile.equal * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("equal_tailed" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Equal-Tailed 95% CI"
),
statistics = data.frame(
est = round(est.equal * 100, digits = digits),
lower = round(lower.tile.equal * 100, digits = digits),
upper = round(upper.tile.equal * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("norm" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Normal Approximation Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.norm * 100, digits = digits),
lower = round(lower.tile.norm * 100, digits = digits),
upper = round(upper.tile.norm * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("norm" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Normal Approximation Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.norm * 100, digits = digits),
lower = round(lower.tile.norm * 100, digits = digits),
upper = round(upper.tile.norm * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("basic" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Basic Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.basic * 100, digits = digits),
lower = round(lower.tile.basic * 100, digits = digits),
upper = round(upper.tile.basic * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("basic" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Basic Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.basic * 100, digits = digits),
lower = round(lower.tile.basic * 100, digits = digits),
upper = round(upper.tile.basic * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("percent" %in% method && correction == FALSE) {
stop("percent method is not developed yet")
# return(
# list(
# method = (
# "cv with Bootstrap Percentile 95% CI"
# ),
# statistics = data.frame(
# est = round(est.percent * 100, digits = digits),
# lower = round(lower.tile.percent * 100, digits = digits),
# upper = round(upper.tile.percent * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if ("percent" %in% method && correction == TRUE) {
stop("percent method is not developed yet")
# return(
# list(
# method = (
# "Corrected cv with Bootstrap Percentile 95% CI"
# ),
# statistics = data.frame(
# est = round(est.percent * 100, digits = digits),
# lower = round(lower.tile.percent * 100, digits = digits),
# upper = round(upper.tile.percent * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if ("bca" %in% method && correction == FALSE) {
stop("BCa method is not developed yet")
# return(
# list(
# method = (
# "cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
# ),
# statistics = data.frame(
# est = round(est.bca * 100, digits = digits),
# lower = round(lower.tile.bca * 100, digits = digits),
# upper = round(upper.tile.bca * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if ("bca" %in% method && correction == TRUE) {
stop("BCa method is not developed yet")
# return(
# list(
# method = (
# "Corrected cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
# ),
# statistics = data.frame(
# est = round(est.bca * 100, digits = digits),
# lower = round(lower.tile.bca * 100, digits = digits),
# upper = round(upper.tile.bca * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if (method == "all" && correction == FALSE) {
return(
list(
method = "All methods",
statistics = data.frame(
row.names = c(
"kelley", # 1
"mckay", # 2
"miller", # 3
"vangel", # 4
"mahmoudvand_hassani", # 5
"equal_tailed", # 6
"shortest_length", # 7
"normal_approximation", # 8
"norm", # 9
"basic" # 10
# "perc" # 11
# "bca" # 12
),
est = c(
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
# round(cv * 100, digits = digits),
# round(cv * 100, digits = digits),
round(cv * 100, digits = digits)
),
lower = c(
round(lower.tile.kelley * 100, digits = digits),
round(lower.tile.mckay * 100, digits = digits),
round(lower.tile.miller * 100, digits = digits),
round(lower.tile.vangel * 100, digits = digits),
round(lower.tile.mahmoud * 100, digits = digits),
round(lower.tile.equal * 100, digits = digits),
round(lower.tile.shortest * 100, digits = digits),
round(lower.tile.normaapprox * 100, digits = digits),
round(lower.tile.norm * 100, digits = digits),
round(lower.tile.basic * 100, digits = digits)
# ,
# round(lower.tile.percent * 100, digits = digits)
# ,
# round(lower.tile.bca * 100, digits = digits)
),
upper = c(
round(upper.tile.kelley * 100, digits = digits),
round(upper.tile.mckay * 100, digits = digits),
round(upper.tile.miller * 100, digits = digits),
round(upper.tile.vangel * 100, digits = digits),
round(upper.tile.mahmoud * 100, digits = digits),
round(upper.tile.equal * 100, digits = digits),
round(upper.tile.shortest * 100, digits = digits),
round(upper.tile.normaapprox * 100, digits = digits),
round(upper.tile.norm * 100, digits = digits),
round(upper.tile.basic * 100, digits = digits)
# ,
# round(upper.tile.percent * 100, digits = digits)
# ,
# round(upper.tile.bca * 100, digits = digits)
),
description = c(
"cv with Kelley 95% CI",
"cv with McKay 95% CI",
"cv with Miller 95% CI",
"cv with Vangel 95% CI",
"cv with Mahmoudvand-Hassani 95% CI",
"cv with Equal-Tailed 95% CI",
"cv with Shortest-Length 95% CI",
"cv with Normal Approximation 95% CI",
"cv with Normal Approximation Bootstrap 95% CI",
"cv with Basic Bootstrap 95% CI"
# ,
# "cv with Bootstrap Percentile 95% CI"
# ,
# "cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
)
)
)
)
} else if (method == "all" && correction == TRUE) {
return(
list(
method = "All methods",
statistics = data.frame(
row.names = c(
"kelley", # 1
"mckay", # 2
"miller", # 3
"vangel", # 4
"mahmoudvand_hassani", # 5
"equal_tailed", # 6
"shortest_length", # 7
"normal_approximation", # 8
"norm", # 9
"basic" # 10
# "perc" # 11
# "bca" # 12
),
est = c(
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
# round(cv_corr * 100, digits = digits),
# round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits)
),
lower = c(
round(lower.tile.kelley * 100, digits = digits),
round(lower.tile.mckay * 100, digits = digits),
round(lower.tile.miller * 100, digits = digits),
round(lower.tile.vangel * 100, digits = digits),
round(lower.tile.mahmoud * 100, digits = digits),
round(lower.tile.equal * 100, digits = digits),
round(lower.tile.shortest * 100, digits = digits),
round(lower.tile.normaapprox * 100, digits = digits),
round(lower.tile.norm * 100, digits = digits),
round(lower.tile.basic * 100, digits = digits)
# ,
# round(lower.tile.percent * 100, digits = digits)
# ,
# round(lower.tile.bca * 100, digits = digits)
),
upper = c(
round(upper.tile.kelley * 100, digits = digits),
round(upper.tile.mckay * 100, digits = digits),
round(upper.tile.miller * 100, digits = digits),
round(upper.tile.vangel * 100, digits = digits),
round(upper.tile.mahmoud * 100, digits = digits),
round(upper.tile.equal * 100, digits = digits),
round(upper.tile.shortest * 100, digits = digits),
round(upper.tile.normaapprox * 100, digits = digits),
round(upper.tile.norm * 100, digits = digits),
round(upper.tile.basic * 100, digits = digits)
# ,
# round(upper.tile.percent * 100, digits = digits)
# ,
# round(upper.tile.bca * 100, digits = digits)
),
description = c(
"Corrected cv with Kelley 95% CI",
"Corrected cv with McKay 95% CI",
"Corrected cv with Miller 95% CI",
"Corrected cv with Vangel 95% CI",
"Corrected cv with Mahmoudvand-Hassani 95% CI",
"Corrected cv with Equal-Tailed 95% CI",
"Corrected cv with Shortest-Length 95% CI",
"Corrected cv with Normal Approximation 95% CI",
"Corrected cv with Normal Approximation Bootstrap 95% CI",
"Corrected cv with Basic Bootstrap 95% CI"
# ,
# "Corrected cv with Bootstrap Percentile 95% CI"
# ,
# "Corrected cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
)
)
)
)
}
}
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
x <- c(
0.2, 0.5, 1.1, 1.4, 1.8, 2.3, 2.5, 2.7, 3.5, 4.4,
4.6, 5.4, 5.4, 5.7, 5.8, 5.9, 6.0, 6.6, 7.1, 7.9
)
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "kelley",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "mckay",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "miller",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "vangel",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "mahmoudvand_hassani",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "normal_approximation",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "shortest_length",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "equal_tailed",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "basic",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "all",
correction = FALSE,
alpha = 0.05
)
MaaniBeigy/DescObs documentation built on May 23, 2019, 9:37 a.m.
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## ----setup, include=FALSE------------------------------------------------
knitr::opts_chunk$set(echo = TRUE)
## ----echo=FALSE, warning=FALSE, message=FALSE, include = FALSE-----------
library(dplyr)
library(boot)
x <- c(
0.2, 0.5, 1.1, 1.4, 1.8, 2.3, 2.5, 2.7, 3.5, 4.4,
4.6, 5.4, 5.4, 5.7, 5.8, 5.9, 6.0, 6.6, 7.1, 7.9
)
cv_versatile <- function(
x, # Currently there are methods for numeric vectors
na.rm = FALSE, # indicating whether NA values should be stripped
digits = 1, # digits of output after rounding. default is 4
method = NULL, # method for the computation of confidence interval (CI)
correction = FALSE, # indicating whether to compute the unbiased statistics
alpha = 0.05, # The allowed type I error probability
R = NULL, # integer indicating the number of bootstrap replicates
...
) {
# library(MBESS)
# require(dplyr)
# require(SciViews)
# require(boot)
if (missing(x) || is.null(x)) {
stop("object 'x' not found")
} else if (!missing(x)) {
x <- x
}
if (!is.numeric(x)) {
stop("argument is not a numeric vector: returning NA")
return(NA_real_)
}
na.rm <- na.rm # removes NAs if TRUE
if (na.rm == TRUE) {
x <- x[!is.na(x)]
} else if (anyNA(x)) {
stop(
"missing values and NaN's not allowed if 'na.rm' is FALSE"
)
}
if (is.null(digits)) {
digits = 1
}
if (is.null(R)) {
R = 1000
}
digits <- digits # digits required for rounding
shortest_length <- data.frame( # "a" and "b" values for shortest-length CI
v = c( # degrees of freedom
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 40, 50, 60, 70, 80, 90,
100, 150, 200, 250, 300, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 300, 2, 3, 4,
5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 26, 27, 28, 29, 30, 40, 50, 60, 70, 80, 90,
100, 150, 200, 250, 300
),
al = c( # al is the allowed type I error probability
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05, 0.05,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01
),
a = c( # a is an attribute for the length of CI
0.2065, 0.5654, 1.02, 1.5352, 2.093, 2.6828, 3.2981, 3.9343,
4.5883, 5.2573, 5.9397, 6.6337, 7.3382, 8.0521, 8.7745,
9.5047, 10.2421, 10.9861, 11.7362, 12.4919, 13.253,
14.0191, 14.7899, 15.565, 16.3443, 17.1275, 17.9144,
18.7049, 19.4987, 27.5919, 35.9012, 44.3661, 52.9501,
61.629, 70.386, 79.2086, 124.0372, 169.6646, 215.8057,
262.3132, 0.1015, 0.3449, 0.6918, 1.1092, 1.5776,
2.0851, 2.6235, 3.1874, 3.7729, 4.3768, 4.9967,
5.6308, 6.2776, 6.9357, 7.6042, 8.282, 8.9685,
9.6629, 10.3647, 11.0733, 11.7882, 12.5092,
13.2357, 13.9675, 14.7043, 15.4458, 16.1917,
16.9419, 17.6961, 25.4233, 33.4085, 41.5794, 49.8923,
58.3183, 66.8374, 75.4347, 119.2737, 164.0642,
209.4667, 255.3057, 0.02, 0.114, 0.2937, 0.5461,
0.8567, 1.2143, 1.6107, 2.0394, 2.4958, 2.976, 3.4771,
3.9968, 4.5329, 5.084, 5.6487, 6.2256, 6.8139, 7.4126,
8.0209, 8.6383, 9.264, 9.8976, 10.5385, 11.1864, 11.8408,
12.5014, 13.1678, 13.8397, 14.517, 21.5331, 28.8879,
36.4863, 44.2711, 52.2044, 60.2597, 68.4177, 110.3262,
153.4834, 197.444, 241.9776
),
b = c( # b is an attribute for the length of CI
12.5208, 13.1532, 14.18, 15.3498, 16.5807, 17.8391,
19.1099, 20.3848, 21.6598, 22.9325, 24.2016,
25.4666, 26.7269, 27.9825, 29.2334, 30.4796,
31.7212, 32.9585, 34.1915, 35.4205, 36.6455,
37.8668, 39.0844, 40.2986, 41.5095, 42.7171,
43.9217, 45.1234, 46.3222, 58.1755, 69.8342,
81.3479, 92.7487, 104.0584, 115.2925, 126.4628,
181.6128, 235.9748, 289.8273, 343.3155, 15.1194,
15.5897, 16.5735, 17.7432, 18.9954, 20.2863,
21.5953, 22.9118, 24.2303, 25.5476, 26.8618,
28.1717, 29.4769, 30.777, 32.072, 33.3619,
34.6467, 35.9266, 37.2016, 38.472, 39.7379,
40.9995, 42.257, 43.5105, 44.7601, 46.006,
47.2483, 48.4872, 49.7229, 61.9217, 73.892,
85.6914, 97.3573, 108.9153, 120.3839, 131.7767,
187.9079, 243.1025, 297.691, 351.8461, 20.8264,
20.9856, 21.8371, 22.9867, 24.2618, 25.6017,
26.9749, 28.3643, 29.7602, 31.158, 32.5543,
33.9474, 35.3358, 36.7192, 38.0968, 39.4688,
40.8347, 42.1952, 43.5498, 44.8989, 46.2426,
47.581, 48.9144, 50.2428, 51.5665, 52.8856,
54.2002, 55.5107, 56.8169, 69.6808, 82.2534,
94.6063, 106.7867, 118.8272, 130.7514, 142.5771,
200.6194, 257.4375, 313.462, 368.9185
)
)
if ("kelley" %in% method) {
if (!require(MBESS)) {
warning(
"package 'MBESS' required to calculate Kelley's confidence interval"
)
}
}
cv <- (
sd(x, na.rm = na.rm)/mean(x, na.rm = na.rm) # coefficient of variation
)
cv_corr <- cv * (
(1 - (1/(4 * (length(x) - 1))) + # corrected coefficient of variation
(1/length(x)) * cv^2) +
(1/(2 * (length(x) - 1)^2))
)
if (is.null(method) == TRUE & correction == FALSE) {
return(
list(
method = "cv = sd/mean (may be biased)",
statistics = data.frame(
est = round(cv*100, digits = digits),
row.names = c(" ")
)
)
)
} else if (is.null(method) == TRUE & correction == TRUE) {
return(
list(
method = "Corrected (i.e., unbiased) cv",
statistics = data.frame(
est = round(cv_corr*100, digits = digits),
row.names = c(" ")
)
)
)
} else if (!is.null(method)) {
method <- tolower(method) # convert user's input to lower-case
method <- match.arg( # match the user's input with available methods
arg = method,
choices = c(
"kelley", "mckay", "miller", "vangel", "mahmoudvand_hassani",
"equal_tailed", "shortest_length", "normal_approximation",
"norm","basic", "perc", "bca", "all"
),
several.ok = TRUE
)
}
# calculating cv's bootstrap CI
boot.cv <- boot::boot(
x,
function(x, i) { # coefficient of variation
sd(x[i], na.rm = na.rm)/mean(x[i], na.rm = na.rm)
},
R = R
)
boot.cv_corr <- boot::boot(
x,
function(x, i) { # corrected coefficient of variation
sd(x[i], na.rm = na.rm)/mean(x[i], na.rm = na.rm) * (
(1 - (1/(4 * (length(x[i]) - 1))) +
(1/length(x)) * (
sd(x[i], na.rm = na.rm)/mean(x[i], na.rm = na.rm)
)^2) +
(1/(2 * (length(x) - 1)^2))
)
},
R = R
)
# calculating cv and its CI attributes based on selected methods
if ("kelley" %in% method && correction == FALSE) {
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
est.kelley <- cv # cv is an estimate of CV
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
} else if ("kelley" %in% method && correction == TRUE) {
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
est.kelley <- cv_corr # corrected cv is an estimate of CV
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
} else if ("mckay" %in% method && correction == FALSE) {
if (cv > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv # cv is an estimate of CV
lower.tile.mckay <- cv/sqrt((u1/(v + 1) - 1 )*(cv^2) + u1/v)
upper.tile.mckay <- cv/sqrt((u2/(v + 1) - 1)*(cv^2) + u2/v)
} else if ("mckay" %in% method && correction == TRUE) {
if (cv_corr > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv_corr # corrected cv is an estimate of CV
lower.tile.mckay <- cv_corr/sqrt((u1/(v + 1) - 1 )*(cv_corr^2) + u1/v)
upper.tile.mckay <- cv_corr/sqrt((u2/(v + 1) - 1)*(cv_corr^2) + u2/v)
} else if ("miller" %in% method && correction == FALSE) {
v <- length(x) - 1
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv^2/v) * (0.5 + cv^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv # cv is an estimate of CV
lower.tile.miller <- cv - zu
upper.tile.miller <- cv + zu
} else if ("miller" %in% method && correction == TRUE) {
v <- length(x) - 1
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv_corr^2/v) * (0.5 + cv_corr^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv_corr # corrected cv is an estimate of CV
lower.tile.miller <- cv_corr - zu
upper.tile.miller <- cv_corr + zu
} else if ("vangel" %in% method && correction == FALSE) {
if (cv > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.vangel <- cv # cv is an estimate of CV
lower.tile.vangel <- cv/sqrt(((u1 + 1)/(v + 1) - 1 )*(cv^2) + u1/v)
upper.tile.vangel <- cv/sqrt(((u2 + 1)/(v + 1) - 1)*(cv^2) + u2/v)
} else if ("vangel" %in% method && correction == TRUE) {
if (cv_corr > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.vangel <- cv_corr # corrected cv is an estimate of CV
lower.tile.vangel <- cv_corr/sqrt(
((u1 + 1)/(v + 1) - 1 )*(cv_corr^2) + u1/v
)
upper.tile.vangel <- cv_corr/sqrt(
((u2 + 1)/(v + 1) - 1)*(cv_corr^2) + u2/v
)
} else if ("mahmoudvand_hassani" %in% method && correction == FALSE) {
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv # cv is an estimate of CV
lower.tile.mahmoud <- cv/ul
upper.tile.mahmoud <- cv/uu
} else if ("mahmoudvand_hassani" %in% method && correction == TRUE) {
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv_corr # corrected cv is an estimate of CV
lower.tile.mahmoud <- cv_corr/ul
upper.tile.mahmoud <- cv_corr/uu
} else if ("normal_approximation" %in% method && correction == FALSE) {
cn <- sqrt(1 - (1/(2 * length(x))))
ul <- cn + (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
uu <- cn - (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
est.normaapprox <- cv # cv is an estimate of CV
lower.tile.normaapprox <- cv/ul
upper.tile.normaapprox <- cv/uu
} else if ("normal_approximation" %in% method && correction == TRUE) {
cn <- sqrt(1 - (1/(2 * length(x))))
ul <- cn + (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
uu <- cn - (qnorm(1 - (alpha/2)) * sqrt(1 - cn^2))
est.normaapprox <- cv_corr # corrected cv is an estimate of CV
lower.tile.normaapprox <- cv_corr/ul
upper.tile.normaapprox <- cv_corr/uu
} else if ("shortest_length" %in% method && correction == FALSE) {
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv # cv is an estimate of CV
lower.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(a_value$a)
} else if ("shortest_length" %in% method && correction == TRUE) {
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv_corr # corrected cv is an estimate of CV
lower.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(a_value$a)
} else if ("equal_tailed" %in% method && correction == FALSE) {
v <- length(x) - 1
tt1 <- qchisq(1 - alpha/2,v)
tt2 <- qchisq(alpha/2,v)
est.equal <- cv # cv is an estimate of CV
lower.tile.equal <- (cv*sqrt(v))/(sqrt(tt1))
upper.tile.equal <- (cv*sqrt(v))/(sqrt(tt2))
} else if ("equal_tailed" %in% method && correction == TRUE) {
v <- length(x) - 1
tt1 <- qchisq(1 - alpha/2,v)
tt2 <- qchisq(alpha/2,v)
est.equal <- cv_corr # corrected cv is an estimate of CV
lower.tile.equal <- (cv_corr*sqrt(v))/(sqrt(tt1))
upper.tile.equal <- (cv_corr*sqrt(v))/(sqrt(tt2))
} else if ("norm" %in% method && correction == FALSE) {
boot.normcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "norm"
)
est.norm <- cv # cv is an estimate of CV
lower.tile.norm <- boot.normcv.ci$normal[2]
upper.tile.norm <- boot.normcv.ci$normal[3]
} else if ("norm" %in% method && correction == TRUE) {
boot.normcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "norm"
)
est.norm <- cv_corr # corrected cv is an estimate of CV
lower.tile.norm <- boot.normcv_corr.ci$normal[2]
upper.tile.norm <- boot.normcv_corr.ci$normal[3]
} else if ("basic" %in% method && correction == FALSE) {
boot.basiccv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.basic <- cv # cv is an estimate of CV
lower.tile.basic <- boot.basiccv.ci$basic[4]
upper.tile.basic <- boot.basiccv.ci$basic[5]
} else if ("basic" %in% method && correction == TRUE) {
boot.basiccv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.basic <- cv_corr # corrected cv is an estimate of CV
lower.tile.basic <- boot.basiccv_corr.ci$basic[4]
upper.tile.basic <- boot.basiccv_corr.ci$basic[5]
} else if ("perc" %in% method && correction == FALSE) {
boot.percentcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.percent <- cv # cv is an estimate of CV
lower.tile.percent <- boot.percentcv.ci$percent[4]
upper.tile.percent <- boot.percentcv.ci$percent[5]
} else if ("perc" %in% method && correction == TRUE) {
boot.percentcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.percent <- cv_corr # corrected cv is an estimate of CV
lower.tile.percent <- boot.percentcv_corr.ci$percent[4]
upper.tile.percent <- boot.percentcv_corr.ci$percent[5]
} else if ("bca" %in% method && correction == FALSE) {
boot.bcacv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.bca <- cv # cv is an estimate of CV
lower.tile.bca <- boot.bcacv.ci$bca[4]
upper.tile.bca <- boot.bcacv.ci$bca[5]
} else if ("bca" %in% method && correction == TRUE) {
boot.bcacv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.bca <- cv_corr # corrected cv is an estimate of CV
lower.tile.bca <- boot.bcacv_corr.ci$percent[4]
upper.tile.bca <- boot.bcacv_corr.ci$percent[5]
} else if (method == "all" && correction == FALSE) {
est.all <- cv # cv is an estimate of CV
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
if (cv > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv # cv is an estimate of CV
lower.tile.mckay <- cv/sqrt((u1/(v + 1) - 1 )*(cv^2) + u1/v)
upper.tile.mckay <- cv/sqrt((u2/(v + 1) - 1)*(cv^2) + u2/v)
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv^2/v) * (0.5 + cv^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv # cv is an estimate of CV
lower.tile.miller <- cv - zu
upper.tile.miller <- cv + zu
tt1 <- qchisq(1 - alpha/2,v)/v
tt2 <- qchisq(alpha/2,v)/v
uu1 <- v*tt1
uu2 <- v*tt2
est.vangel <- cv # cv is an estimate of CV
lower.tile.vangel <- cv/sqrt(((uu1 + 1)/(v + 1) - 1 )*(cv^2) + uu1/v)
upper.tile.vangel <- cv/sqrt(((uu2 + 1)/(v + 1) - 1)*(cv^2) + uu2/v)
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv # cv is an estimate of CV
lower.tile.mahmoud <- cv/ul
upper.tile.mahmoud <- cv/uu
cnt <- sqrt(1 - (1/(2 * length(x))))
ult <- cnt + (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
uut <- cnt - (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
est.normaapprox <- cv # cv is an estimate of CV
lower.tile.normaapprox <- cv/ult
upper.tile.normaapprox <- cv/uut
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv # cv is an estimate of CV
lower.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv*sqrt(length(x) - 1))/sqrt(a_value$a)
ttt1 <- qchisq(1 - alpha/2,v)
ttt2 <- qchisq(alpha/2,v)
est.equal <- cv # cv is an estimate of CV
lower.tile.equal <- (cv*sqrt(v))/(sqrt(ttt1))
upper.tile.equal <- (cv*sqrt(v))/(sqrt(ttt2))
boot.normcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "norm"
)
est.norm <- cv # cv is an estimate of CV
lower.tile.norm <- boot.normcv.ci$normal[2]
upper.tile.norm <- boot.normcv.ci$normal[3]
boot.basiccv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.basic <- cv # cv is an estimate of CV
lower.tile.basic <- boot.basiccv.ci$basic[4]
upper.tile.basic <- boot.basiccv.ci$basic[5]
boot.percentcv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.percent <- cv # cv is an estimate of CV
lower.tile.percent <- boot.percentcv.ci$percent[4]
upper.tile.percent <- boot.percentcv.ci$percent[5]
boot.bcacv.ci <- boot::boot.ci(
boot.cv, conf = (1 - alpha), type = "basic"
)
est.bca <- cv # cv is an estimate of CV
lower.tile.bca <- boot.bcacv.ci$bca[4]
upper.tile.bca <- boot.bcacv.ci$bca[5]
} else if (method == "all" && correction == TRUE) {
est.all <- cv_corr # cv_corr is an estimate of CV
ci <- MBESS::conf.limits.nct(
ncp = sqrt(length(x))/cv_corr,
df = length(x) - 1,
conf.level = (1 - alpha)
)
lower.tile.kelley <- unname(sqrt(length(x))/ci$Upper.Limit)
upper.tile.kelley <- unname(sqrt(length(x))/ci$Lower.Limit)
if (cv_corr > 0.33) {
warning("Confidence interval may be very approximate")
}
v <- length(x) - 1
t1 <- qchisq(1 - alpha/2,v)/v
t2 <- qchisq(alpha/2,v)/v
u1 <- v*t1
u2 <- v*t2
est.mckay <- cv_corr # cv_corr is an estimate of CV
lower.tile.mckay <- cv_corr/sqrt((u1/(v + 1) - 1 )*(cv_corr^2) + u1/v)
upper.tile.mckay <- cv_corr/sqrt((u2/(v + 1) - 1)*(cv_corr^2) + u2/v)
z_alpha_over2 <- qnorm(1 - (alpha/2))
u <- sqrt(
(cv_corr^2/v) * (0.5 + cv_corr^2)
)
zu <- z_alpha_over2 * u
est.miller <- cv_corr # cv_corr is an estimate of CV
lower.tile.miller <- cv_corr - zu
upper.tile.miller <- cv_corr + zu
tt1 <- qchisq(1 - alpha/2,v)/v
tt2 <- qchisq(alpha/2,v)/v
uu1 <- v*tt1
uu2 <- v*tt2
est.vangel <- cv_corr # cv_corr is an estimate of CV
lower.tile.vangel <- cv_corr/sqrt(((uu1 + 1)/(v + 1) - 1 )*(cv_corr^2) + uu1/v)
upper.tile.vangel <- cv_corr/sqrt(((uu2 + 1)/(v + 1) - 1)*(cv_corr^2) + uu2/v)
if (length(x) <= 340) {
cn <- sqrt(2/(length(x) - 1)) * (
(gamma(length(x)/2))/(gamma((length(x) - 1)/2))
)
} else {
cn <- sqrt(2/(length(x) - 1)) * (
(lgamma(length(x)/2))/(lgamma((length(x) - 1)/2))
)
}
ul <- 2 - (cn + (qnorm((alpha/2)) * sqrt(1 - cn^2)))
uu <- 2 - (cn - (qnorm((alpha/2)) * sqrt(1 - cn^2)))
est.mahmoud <- cv_corr # cv_corr is an estimate of CV
lower.tile.mahmoud <- cv_corr/ul
upper.tile.mahmoud <- cv_corr/uu
cnt <- sqrt(1 - (1/(2 * length(x))))
ult <- cnt + (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
uut <- cnt - (qnorm(1 - (alpha/2)) * sqrt(1 - cnt^2))
est.normaapprox <- cv_corr # cv_corr is an estimate of CV
lower.tile.normaapprox <- cv_corr/ult
upper.tile.normaapprox <- cv_corr/uut
if (length(x) <= 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == length(x) - 1) %>%
dplyr::select(b)
} else if (length(x) > 300) {
a_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(a)
b_value <- shortest_length %>%
subset(al == alpha & v == 300) %>%
dplyr::select(b)
}
est.shortest <- cv_corr # cv_corr is an estimate of CV
lower.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(b_value$b)
upper.tile.shortest <- (cv_corr*sqrt(length(x) - 1))/sqrt(a_value$a)
ttt1 <- qchisq(1 - alpha/2,v)
ttt2 <- qchisq(alpha/2,v)
est.equal <- cv_corr # cv_corr is an estimate of CV
lower.tile.equal <- (cv_corr*sqrt(v))/(sqrt(ttt1))
upper.tile.equal <- (cv_corr*sqrt(v))/(sqrt(ttt2))
boot.normcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "norm"
)
est.norm <- cv_corr # cv_corr is an estimate of CV
lower.tile.norm <- boot.normcv_corr.ci$normal[2]
upper.tile.norm <- boot.normcv_corr.ci$normal[3]
boot.basiccv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.basic <- cv_corr # cv_corr is an estimate of CV
lower.tile.basic <- boot.basiccv_corr.ci$basic[4]
upper.tile.basic <- boot.basiccv_corr.ci$basic[5]
boot.percentcv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.percent <- cv_corr # cv_corr is an estimate of CV
lower.tile.percent <- boot.percentcv_corr.ci$percent[4]
upper.tile.percent <- boot.percentcv_corr.ci$percent[5]
boot.bcacv_corr.ci <- boot::boot.ci(
boot.cv_corr, conf = (1 - alpha), type = "basic"
)
est.bca <- cv_corr # cv_corr is an estimate of CV
lower.tile.bca <- boot.bcacv_corr.ci$bca[4]
upper.tile.bca <- boot.bcacv_corr.ci$bca[5]
}
# preparing the output based on the selected methods
if ("kelley" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Kelley 95% CI"
),
statistics = data.frame(
est = round(est.kelley * 100, digits = digits),
lower = round(lower.tile.kelley * 100, digits = digits),
upper = round(upper.tile.kelley * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("kelley" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Kelley 95% CI"
),
statistics = data.frame(
est = round(est.kelley * 100, digits = digits),
lower = round(lower.tile.kelley * 100, digits = digits),
upper = round(upper.tile.kelley * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mckay" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with McKay 95% CI"
),
statistics = data.frame(
est = round(est.mckay * 100, digits = digits),
lower = round(lower.tile.mckay * 100, digits = digits),
upper = round(upper.tile.mckay * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mckay" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with McKay 95% CI"
),
statistics = data.frame(
est = round(est.mckay * 100, digits = digits),
lower = round(lower.tile.mckay * 100, digits = digits),
upper = round(upper.tile.mckay * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("miller" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Miller 95% CI"
),
statistics = data.frame(
est = round(est.miller * 100, digits = digits),
lower = round(lower.tile.miller * 100, digits = digits),
upper = round(upper.tile.miller * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("miller" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Miller 95% CI"
),
statistics = data.frame(
est = round(est.miller * 100, digits = digits),
lower = round(lower.tile.miller * 100, digits = digits),
upper = round(upper.tile.miller * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("vangel" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Vangel 95% CI"
),
statistics = data.frame(
est = round(est.vangel * 100, digits = digits),
lower = round(lower.tile.vangel * 100, digits = digits),
upper = round(upper.tile.vangel * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("vangel" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Vangel 95% CI"
),
statistics = data.frame(
est = round(est.vangel * 100, digits = digits),
lower = round(lower.tile.vangel * 100, digits = digits),
upper = round(upper.tile.vangel * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mahmoudvand_hassani" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Mahmoudvand-Hassani 95% CI"
),
statistics = data.frame(
est = round(est.mahmoud * 100, digits = digits),
lower = round(lower.tile.mahmoud * 100, digits = digits),
upper = round(upper.tile.mahmoud * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("mahmoudvand_hassani" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Mahmoudvand-Hassani 95% CI"
),
statistics = data.frame(
est = round(est.mahmoud * 100, digits = digits),
lower = round(lower.tile.mahmoud * 100, digits = digits),
upper = round(upper.tile.mahmoud * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("normal_approximation" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Normal Approximation 95% CI"
),
statistics = data.frame(
est = round(est.normaapprox * 100, digits = digits),
lower = round(
lower.tile.normaapprox * 100, digits = digits
),
upper = round(
upper.tile.normaapprox * 100, digits = digits
),
row.names = c(" ")
)
)
)
} else if ("normal_approximation" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Normal Approximation 95% CI"
),
statistics = data.frame(
est = round(est.normaapprox * 100, digits = digits),
lower = round(
lower.tile.normaapprox * 100, digits = digits
),
upper = round(
upper.tile.normaapprox * 100, digits = digits
),
row.names = c(" ")
)
)
)
} else if ("shortest_length" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Shortest-Length 95% CI"
),
statistics = data.frame(
est = round(est.shortest * 100, digits = digits),
lower = round(lower.tile.shortest * 100, digits = digits),
upper = round(upper.tile.shortest * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("shortest_length" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Shortest-Length 95% CI"
),
statistics = data.frame(
est = round(est.shortest * 100, digits = digits),
lower = round(lower.tile.shortest * 100, digits = digits),
upper = round(upper.tile.shortest * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("equal_tailed" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Equal-Tailed 95% CI"
),
statistics = data.frame(
est = round(est.equal * 100, digits = digits),
lower = round(lower.tile.equal * 100, digits = digits),
upper = round(upper.tile.equal * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("equal_tailed" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Equal-Tailed 95% CI"
),
statistics = data.frame(
est = round(est.equal * 100, digits = digits),
lower = round(lower.tile.equal * 100, digits = digits),
upper = round(upper.tile.equal * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("norm" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Normal Approximation Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.norm * 100, digits = digits),
lower = round(lower.tile.norm * 100, digits = digits),
upper = round(upper.tile.norm * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("norm" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Normal Approximation Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.norm * 100, digits = digits),
lower = round(lower.tile.norm * 100, digits = digits),
upper = round(upper.tile.norm * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("basic" %in% method && correction == FALSE) {
return(
list(
method = (
"cv with Basic Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.basic * 100, digits = digits),
lower = round(lower.tile.basic * 100, digits = digits),
upper = round(upper.tile.basic * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("basic" %in% method && correction == TRUE) {
return(
list(
method = (
"Corrected cv with Basic Bootstrap 95% CI"
),
statistics = data.frame(
est = round(est.basic * 100, digits = digits),
lower = round(lower.tile.basic * 100, digits = digits),
upper = round(upper.tile.basic * 100, digits = digits),
row.names = c(" ")
)
)
)
} else if ("percent" %in% method && correction == FALSE) {
stop("percent method is not developed yet")
# return(
# list(
# method = (
# "cv with Bootstrap Percentile 95% CI"
# ),
# statistics = data.frame(
# est = round(est.percent * 100, digits = digits),
# lower = round(lower.tile.percent * 100, digits = digits),
# upper = round(upper.tile.percent * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if ("percent" %in% method && correction == TRUE) {
stop("percent method is not developed yet")
# return(
# list(
# method = (
# "Corrected cv with Bootstrap Percentile 95% CI"
# ),
# statistics = data.frame(
# est = round(est.percent * 100, digits = digits),
# lower = round(lower.tile.percent * 100, digits = digits),
# upper = round(upper.tile.percent * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if ("bca" %in% method && correction == FALSE) {
stop("BCa method is not developed yet")
# return(
# list(
# method = (
# "cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
# ),
# statistics = data.frame(
# est = round(est.bca * 100, digits = digits),
# lower = round(lower.tile.bca * 100, digits = digits),
# upper = round(upper.tile.bca * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if ("bca" %in% method && correction == TRUE) {
stop("BCa method is not developed yet")
# return(
# list(
# method = (
# "Corrected cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
# ),
# statistics = data.frame(
# est = round(est.bca * 100, digits = digits),
# lower = round(lower.tile.bca * 100, digits = digits),
# upper = round(upper.tile.bca * 100, digits = digits),
# row.names = c(" ")
# )
# )
# )
} else if (method == "all" && correction == FALSE) {
return(
list(
method = "All methods",
statistics = data.frame(
row.names = c(
"kelley", # 1
"mckay", # 2
"miller", # 3
"vangel", # 4
"mahmoudvand_hassani", # 5
"equal_tailed", # 6
"shortest_length", # 7
"normal_approximation", # 8
"norm", # 9
"basic" # 10
# "perc" # 11
# "bca" # 12
),
est = c(
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
round(cv * 100, digits = digits),
# round(cv * 100, digits = digits),
# round(cv * 100, digits = digits),
round(cv * 100, digits = digits)
),
lower = c(
round(lower.tile.kelley * 100, digits = digits),
round(lower.tile.mckay * 100, digits = digits),
round(lower.tile.miller * 100, digits = digits),
round(lower.tile.vangel * 100, digits = digits),
round(lower.tile.mahmoud * 100, digits = digits),
round(lower.tile.equal * 100, digits = digits),
round(lower.tile.shortest * 100, digits = digits),
round(lower.tile.normaapprox * 100, digits = digits),
round(lower.tile.norm * 100, digits = digits),
round(lower.tile.basic * 100, digits = digits)
# ,
# round(lower.tile.percent * 100, digits = digits)
# ,
# round(lower.tile.bca * 100, digits = digits)
),
upper = c(
round(upper.tile.kelley * 100, digits = digits),
round(upper.tile.mckay * 100, digits = digits),
round(upper.tile.miller * 100, digits = digits),
round(upper.tile.vangel * 100, digits = digits),
round(upper.tile.mahmoud * 100, digits = digits),
round(upper.tile.equal * 100, digits = digits),
round(upper.tile.shortest * 100, digits = digits),
round(upper.tile.normaapprox * 100, digits = digits),
round(upper.tile.norm * 100, digits = digits),
round(upper.tile.basic * 100, digits = digits)
# ,
# round(upper.tile.percent * 100, digits = digits)
# ,
# round(upper.tile.bca * 100, digits = digits)
),
description = c(
"cv with Kelley 95% CI",
"cv with McKay 95% CI",
"cv with Miller 95% CI",
"cv with Vangel 95% CI",
"cv with Mahmoudvand-Hassani 95% CI",
"cv with Equal-Tailed 95% CI",
"cv with Shortest-Length 95% CI",
"cv with Normal Approximation 95% CI",
"cv with Normal Approximation Bootstrap 95% CI",
"cv with Basic Bootstrap 95% CI"
# ,
# "cv with Bootstrap Percentile 95% CI"
# ,
# "cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
)
)
)
)
} else if (method == "all" && correction == TRUE) {
return(
list(
method = "All methods",
statistics = data.frame(
row.names = c(
"kelley", # 1
"mckay", # 2
"miller", # 3
"vangel", # 4
"mahmoudvand_hassani", # 5
"equal_tailed", # 6
"shortest_length", # 7
"normal_approximation", # 8
"norm", # 9
"basic" # 10
# "perc" # 11
# "bca" # 12
),
est = c(
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits),
# round(cv_corr * 100, digits = digits),
# round(cv_corr * 100, digits = digits),
round(cv_corr * 100, digits = digits)
),
lower = c(
round(lower.tile.kelley * 100, digits = digits),
round(lower.tile.mckay * 100, digits = digits),
round(lower.tile.miller * 100, digits = digits),
round(lower.tile.vangel * 100, digits = digits),
round(lower.tile.mahmoud * 100, digits = digits),
round(lower.tile.equal * 100, digits = digits),
round(lower.tile.shortest * 100, digits = digits),
round(lower.tile.normaapprox * 100, digits = digits),
round(lower.tile.norm * 100, digits = digits),
round(lower.tile.basic * 100, digits = digits)
# ,
# round(lower.tile.percent * 100, digits = digits)
# ,
# round(lower.tile.bca * 100, digits = digits)
),
upper = c(
round(upper.tile.kelley * 100, digits = digits),
round(upper.tile.mckay * 100, digits = digits),
round(upper.tile.miller * 100, digits = digits),
round(upper.tile.vangel * 100, digits = digits),
round(upper.tile.mahmoud * 100, digits = digits),
round(upper.tile.equal * 100, digits = digits),
round(upper.tile.shortest * 100, digits = digits),
round(upper.tile.normaapprox * 100, digits = digits),
round(upper.tile.norm * 100, digits = digits),
round(upper.tile.basic * 100, digits = digits)
# ,
# round(upper.tile.percent * 100, digits = digits)
# ,
# round(upper.tile.bca * 100, digits = digits)
),
description = c(
"Corrected cv with Kelley 95% CI",
"Corrected cv with McKay 95% CI",
"Corrected cv with Miller 95% CI",
"Corrected cv with Vangel 95% CI",
"Corrected cv with Mahmoudvand-Hassani 95% CI",
"Corrected cv with Equal-Tailed 95% CI",
"Corrected cv with Shortest-Length 95% CI",
"Corrected cv with Normal Approximation 95% CI",
"Corrected cv with Normal Approximation Bootstrap 95% CI",
"Corrected cv with Basic Bootstrap 95% CI"
# ,
# "Corrected cv with Bootstrap Percentile 95% CI"
# ,
# "Corrected cv with Adjusted Bootstrap Percentile (BCa) 95% CI"
)
)
)
)
}
}
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
x <- c(
0.2, 0.5, 1.1, 1.4, 1.8, 2.3, 2.5, 2.7, 3.5, 4.4,
4.6, 5.4, 5.4, 5.7, 5.8, 5.9, 6.0, 6.6, 7.1, 7.9
)
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "kelley",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "mckay",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "miller",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "vangel",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "mahmoudvand_hassani",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "normal_approximation",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "shortest_length",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "equal_tailed",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "basic",
correction = TRUE,
alpha = 0.05
)
## ----eval = TRUE, warning=FALSE, message=FALSE---------------------------
cv_versatile(
x,
na.rm = TRUE,
digits = 3,
method = "all",
correction = FALSE,
alpha = 0.05
)
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