Syntax error How to change the order of bars in bar chart in R?

How to change the order of bars in bar chart in R?

This can be done by setting the levels of the variable in the order we want.

Example

> data <- data.frame(Class=c("Highschool","Highschool","Graduate","Graduate",
"Graduate","Graduate","Masters","Masters","Masters","PhD"))

Setting the levels in decreasing order

> data <- within(data,
Class <- factor(Class,
levels=names(sort(table(Class),
decreasing=TRUE))))
> library(ggplot2)
> ggplot(data, aes(x = Class)) + geom_bar()

Setting the levels in increasing order

> data <- within(data,
Class <- factor(Class,
levels=names(sort(table(Class),
decreasing=TRUE))))
> ggplot(data, aes(x = Class)) + geom_bar()

Updated on: 2020-07-06T14:21:14+05:30

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