R: Data Analysis and Visualization

Placing labels inside bars

Sometimes, we might wish to label bars by placing text inside the bars instead of using a legend. In this recipe, we will learn how to do this based on code, similar to the previous recipe.

Getting ready

We will use the cityrain.csv example dataset. We don't need to load any additional packages for this recipe.

How to do it...

We will plot the rainfall in the month of January in four cities as a horizontal bar chart:

rain<-read.csv("cityrain.csv")

y<-barplot(as.matrix(rain[1,-1]),horiz=T,col="white",
yaxt="n",main=" Rainfall in January",xlab="Rainfall (mm)")

x<-0.5*rain[1,-1]
text(x,y,colnames(rain[-1]))

How it works...

The