revdep/library.noindex/qqplotr/old/qqplotr/doc/introduction.R

In aloy/qqplotr: Quantile-Quantile Plot Extensions for 'ggplot2'

## ----eval = F-----------------------------------------------------------------
#  # install.packages("devtools")
#  library(devtools)
#  devtools::install_github("aloy/qqplotr")

## ----eval = F-----------------------------------------------------------------
#  install.packages("qqplotr")

## ----message = F--------------------------------------------------------------
require(qqplotr)

## -----------------------------------------------------------------------------
set.seed(0)
smp <- data.frame(norm = rnorm(100))

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
gg <- ggplot(data = smp, mapping = aes(sample = norm)) +
	stat_qq_band() +
	stat_qq_line() +
	stat_qq_point() +
	labs(x = "Theoretical Quantiles", y = "Sample Quantiles")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
gg <- ggplot(data = smp, mapping = aes(sample = norm)) +
	geom_qq_band(bandType = "ks", mapping = aes(fill = "KS"), alpha = 0.5) +
	geom_qq_band(bandType = "ts", mapping = aes(fill = "TS"), alpha = 0.5) +
	geom_qq_band(bandType = "pointwise", mapping = aes(fill = "Normal"), alpha = 0.5) +
	geom_qq_band(bandType = "boot", mapping = aes(fill = "Bootstrap"), alpha = 0.5) +
	stat_qq_line() +
	stat_qq_point() +
	labs(x = "Theoretical Quantiles", y = "Sample Quantiles") +
	scale_fill_discrete("Bandtype")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
di <- "exp" # exponential distribution
dp <- list(rate = 2) # exponential rate parameter

gg <- ggplot(data = airquality, mapping = aes(sample = Ozone)) +
	stat_qq_band(distribution = di, dparams = dp) +
	stat_qq_line(distribution = di, dparams = dp) +
	stat_qq_point(distribution = di, dparams = dp) +
	labs(x = "Theoretical Quantiles", y = "Sample Quantiles")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
di <- "exp"
dp <- list(rate = 2)
de <- TRUE # enabling the detrend option

gg <- ggplot(data = airquality, mapping = aes(sample = Ozone)) +
	stat_qq_band(distribution = di, dparams = dp, detrend = de) +
	stat_qq_line(distribution = di, dparams = dp, detrend = de) +
	stat_qq_point(distribution = di, dparams = dp, detrend = de) +
	labs(x = "Theoretical Quantiles", y = "Sample Quantiles")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
# install.packages("lattice")
data("barley", package = "lattice")

gg <- ggplot(data = barley, mapping = aes(sample = yield, color = site, fill = site)) +
	stat_qq_band(alpha=0.5) +
	stat_qq_line() +
	stat_qq_point() +
	facet_wrap(~ site) +
	labs(x = "Theoretical Quantiles", y = "Sample Quantiles")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
gg <- ggplot(data = smp, mapping = aes(sample = norm)) +
	stat_pp_band() +
	stat_pp_line() +
	stat_pp_point() +
	labs(x = "Probability Points", y = "Cumulative Probability")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
dp <- list(mean = 2, sd = 2) # shifted and rescaled Normal parameters

gg <- ggplot(data = smp, mapping = aes(sample = norm)) +
	stat_pp_band(dparams = dp) +
	stat_pp_line() +
	stat_pp_point(dparams = dp) +
	labs(x = "Probability Points", y = "Cumulative Probability")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
gg <- ggplot(data = smp, mapping = aes(sample = norm)) +
	stat_pp_band() +
	stat_pp_line(ab = c(.2, .5)) + # intercept = 0.2, slope = 0.5
	stat_pp_point() +
	labs(x = "Probability Points", y = "Cumulative Probability")
gg

## ----fig.align = "center", fig.width = 7, fig.height = 5----------------------
di <- "exp"
dp <- list(rate = .022) # value is based on some empirical tests
de <- TRUE

gg <- ggplot(data = airquality, mapping = aes(sample = Ozone)) +
	stat_pp_band(distribution = di, detrend = de, dparams = dp) +
	stat_pp_line(detrend = de) +
	stat_pp_point(distribution = di, detrend = de, dparams = dp) +
	labs(x = "Probability Points", y = "Cumulative Probability") +
	scale_y_continuous(limits = c(-.5, .5))
gg

## ----eval = F-----------------------------------------------------------------
#  runShinyExample()