Create a bar chart with groups of bars and stacks

Question

Hi team,

I am new to data visualization in R. I want to create a stack of bars in R. How can I do that?

Answer 1

Hi@akhtar,

We can create a bar chart with groups of bars and stacks in each bar by using a matrix as input values. More than two variables are represented as a matrix which is used to create the group bar chart and stacked bar chart as shown below.

colors = c("green","orange","brown")
months <- c("Mar","Apr","May","Jun","Jul")
regions <- c("East","West","North")
Values <- matrix(c(2,9,3,11,9,4,8,7,3,12,5,2,8,10,11), nrow = 3, ncol = 5, byrow = TRUE)
png(file = "barchart_stacked.png")
barplot(Values, main = "total revenue", names.arg = months, xlab = "month", ylab = "revenue", col = colors)
legend("topleft", regions, cex = 1.3, fill = colors)