histGroup: plot histogram for multiple groups.

In Morpho: Calculations and Visualisations Related to Geometric Morphometrics

plot histogram for multiple groups.

Description

plot a histogram for multiple groups, each group colored individually

Usage

histGroup(
  data,
  groups,
  main = paste("Histogram of", dataname),
  xlab = dataname,
  ylab,
  col = NULL,
  alpha = 0.5,
  breaks = "Sturges",
  legend = TRUE,
  legend.x = 80,
  legend.y = 80,
  legend.pch = 15,
  freq = TRUE
)

Arguments

data	vector containing data.
groups	grouping factors
main, xlab, ylab	these arguments to title have useful defaults here.
col	vector containing color for each group. If NULL, the function "rainbow" is called.
alpha	numeric between 0 and 1. Sets the transparency of the colors
breaks	one of: a vector giving the breakpoints between histogram cells, a single number giving the number of cells for the histogram, a character string naming an algorithm to compute the number of cells (see ‘Details’), a function to compute the number of cells. In the last three cases the number is a suggestion only.
legend	logical: if TRUE, a legend is plotted
legend.x	x position of the legend from the upper left corner
legend.y	y position of the legend from the upper left corners
legend.pch	integer: define the symbol to visualise group colors (points)
freq	logical: if TRUE, the histogram graphic is a representation of frequencies, the counts component of the result; if FALSE, probability densities are plotted for each group.

Details

Just a wrapper for the function hist from the "graphics" package

Author(s)

Stefan Schlager

See Also

hist

Examples

data(iris)
histGroup(iris$Petal.Length,iris$Species)

Morpho documentation built on Feb. 16, 2023, 10:51 p.m.