SciencesPo (version 1.3.9)

bar.plot: Plot a barplot with ggplot2

Description

Plot a barplot with ggplot2.

Usage

bar.plot(data, x.var = NULL, y.var = NULL, group.var = NULL,
  group.colors = NULL, palette = NULL, stat = "identity", ...)

Arguments

data

The data frame.

x.var

The name of column containing x variable. Default value is NULL.

y.var

The name of column containing y variable.

group.var

The name of column containing group variable. This variable is used to color plot according to the group.

group.colors

The color of groups; group.colors should have the same length as groups.

palette

This can be also used to indicate group colors. In this case the parameter group.colors should be NULL.

stat

The statistical transformation to use on the data for this layer; default value is identity. To get a bar graph of counts, don't map a variable to y, and use stat="bin"

...

Other parameters passed on to ggplot2.customize function.

encoding

UTF-8

Examples

if (interactive()) {
x = sample(10, 100, rep = TRUE)
y = stats::rnorm(100)
z = sample(letters[1:3],100, rep=TRUE)
dat = data.frame(x,y,z)

bar.plot(dat, 'x', 'y')
bar.plot(dat, 'x', 'y', group.var = 'z')
}