Draw pairs of bargraphs based on two groups
When showing e.g., age or education distributions for two groups, it is convenient to plot them back to back. bi.bars will do so.
bi.bars(x,var=NULL,grp=NULL,horiz,color,label=NULL,zero=FALSE,xlab,ylab,...)
x |
The data frame or matrix from which we specify the data |
var |
The variable to plot |
grp |
a grouping variable. |
horiz |
horizontal (default) or vertical bars |
color |
colors for the two groups – defaults to blue and red |
label |
If specified, labels for the dependent axis |
zero |
If TRUE, subtract the minimum value to make the numbers range from 0 to max -min. This is useful if showing heights |
xlab |
xaxis label if appropriate |
ylab |
y axis label otherwise |
... |
Further parameters to pass to the graphing program |
A trivial, if useful, function to draw back to back histograms/barplots. One for each group.
a graphic
William Revelle
describe, describeBy and statsBy for descriptive statistics and error.bars error.bars.by and densityBy violinBy for graphic displays
#data(bfi)
bi.bars(psychTools::bfi,"age","gender" ,ylab="Age",main="Age by males and females")
bi.bars(psychTools::bfi,"education","gender",xlab="Education",
main="Education by gender",horiz=FALSE)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.