use_label | R Documentation |
Assemble model-fit-derived text or expressions and map them to
the label
aesthetic.
use_label(
labels = c("eq", "p.value"),
other.mapping = NULL,
sep = "*\", \"*"
)
labels |
character A vector with the name of the label components in the order they will be included in the combined label. |
other.mapping |
An unevaluated expression constructed with function
|
sep |
character A string used as separator when pasting the label components together. |
Statistics stat_poly_eq
, stat_ma_eq
,
stat_quant_eq
and stat_correlation
return
multiple text strings to be used individually or assembled into longer
character strings depending on the labels actually desired. Assembling and
mapping them requires verbose R code and familiarity with R expression
syntax. Function use_label()
automates these two taks and accepts
abbreviated familiar names for the parameters in addition to the name of
the columns in the data object returned by the statistics. The default
separator is that for expressions.
The statistics return variables with names ending in .label
. This
ending can be omitted, as well as .value
for f.value.label
,
t.value.label
, z.value.label
, S.value.label
and
p.value.label
. R2
can be used in place of rr
.
Furthermore, case is ignored.
A to the label
aesthetic as an unevaluated R expression, built
using function aes
.
Function use_label()
can be only used to generate an argument
passed to formal parameter mapping
of the statistics
stat_poly_eq
, stat_ma_eq
,
stat_quant_eq
and stat_correlation
.
stat_poly_eq
, stat_ma_eq
,
stat_quant_eq
and stat_correlation
.
# generate artificial data
set.seed(4321)
x <- 1:100
y <- (x + x^2 + x^3) + rnorm(length(x), mean = 0, sd = mean(x^3) / 4)
my.data <- data.frame(x = x,
y = y * 1e-5,
group = c("A", "B"),
y2 = y * 1e-5 + c(2, 0))
# give a name to a formula
formula <- y ~ poly(x, 3, raw = TRUE)
ggplot(my.data, aes(x, y2, colour = group)) +
geom_point() +
stat_poly_line(formula = formula) +
stat_poly_eq(use_label(c("eq", "F")), formula = formula)
ggplot(my.data, aes(x, y2, colour = group)) +
geom_point() +
stat_poly_line(formula = formula) +
stat_poly_eq(use_label(c("R2", "F"), sep = "*\" with \"*"),
formula = formula)
ggplot(my.data, aes(x, y2, colour = group)) +
geom_point() +
stat_poly_line(formula = formula) +
stat_poly_eq(use_label(c("eq", "adj.R2", "n")), formula = formula)
ggplot(my.data, aes(x, y2, colour = group)) +
geom_point() +
stat_poly_line(formula = formula) +
stat_poly_eq(use_label(c("F", "P", "AIC", "BIC")), formula = formula)
ggplot(my.data, aes(x, y)) +
stat_quant_band(formula = formula) +
stat_quant_eq(use_label(c("eq", "n")), formula = formula) +
geom_point()
ggplot(my.data, aes(x, y)) +
stat_ma_line() +
stat_ma_eq(use_label(c("eq", "n"))) +
geom_point()
ggplot(my.data, aes(x, y)) +
stat_correlation(use_label(c("r", "t", "p"))) +
geom_point()
# pass additional mappings if desired
ggplot(my.data, aes(x, y2)) +
geom_point(aes(colour = group)) +
stat_poly_line(aes(colour = group), formula = formula) +
stat_poly_eq(use_label(c("eq", "F"), aes(grp.label = group)), formula = formula)
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