histogram: histogram with overlay

In gobbios/cfp: Christof's functions

histogram with overlay

Description

histogram with overlay

Usage

histogram(
  num,
  fac,
  bins = 50,
  colours = c("red", "blue", "grey", "gold"),
  xlab = "",
  numrange = c(NA, NA)
)

Arguments

num	numerical vector
fac	vector with factor or character
bins	numeric, the number of bins for the histogram
colours	colours to be used for categories (by default four different colours)
xlab	character, label for x-axis
numrange	numeric of length 2, range for numerical values to consider

Details

numrange is by default c(NA, NA), which does not constrain the range along the numeric variable

Value

a plot

Examples

xdata <- data.frame(var = NA, fac = sample(letters[1:3], size = 20000, replace = TRUE))
xdata$var[xdata$fac == "a"] <- rnorm(n = table(xdata$fac)["a"], mean = -2)
xdata$var[xdata$fac == "b"] <- rnorm(n = table(xdata$fac)["b"], mean = 0)
xdata$var[xdata$fac == "c"] <- rnorm(n = table(xdata$fac)["c"], mean = 1)

histogram(num = xdata$var, fac = xdata$fac, bins = 10)
histogram(num = xdata$var, fac = xdata$fac, bins = 50)
histogram(num = xdata$var, fac = xdata$fac, bins = 100)
histogram(num = xdata$var, fac = xdata$fac, bins = 50, numrange = c(-2, 2))
histogram(num = xdata$var, fac = xdata$fac, bins = 100, colours = rainbow(3))

gobbios/cfp documentation built on April 11, 2022, 2:22 a.m.