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How to create side-by-side boxplot in base R?
Often, we need to compare continuous variables using boxplots and thus side-by-side boxplots are required. Creating side-by-side boxplot in base R can be done with the help of creating space for graphs with the help of par(mfrow=). In this function, we can define the number of graphs and the sequence of these graphs, thus creation of side-by-side boxplot will become easy.
Consider the below vectors −
set.seed(100) x<-rnorm(500,2,1) y<-rnorm(500,2,0.5)
Define the range for Y-axis −
Y_range<-range(x,y)
Creating graph space using par(mfrow=) −
par(mfrow=c(1,2))
Creating first boxplot −
boxplot(x,ylim=Y_range)
This will create below output −
Creating second boxplot −
boxplot(y,ylim=Y_range)
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