Box-plot for each month: reordering

Question

I have a data frame named MyData. Let's say it looks like this:

GreekMonth <- c("Ir","Fe","Mr","Ar","Ma","In","Il","Au","Se","Ok","No","De")

SomeValue <- c(rep(c(1,3,5),4), rep(c(2,4,6),4), rep(c(7,8,9),4))

MyData <- data.frame(MONTHS=rep(GreekMonth,3), MY_VALUE=SomeValue)

I tried to make a box-plot for each month. So I wrote:

library(ggplot2)

MyBox <- ggplot(MyData, aes(x=MONTHS, y=MY_VALUE))

MyBox + geom_boxplot()

Of course months are ordered alphabetically.

So, I wrote:

MyData$MONTHS <- factor(MyData$MONTHS, labels = GreekMonth)

and then:

MyBox2 <- ggplot(MyData, aes(x=MONTHS, y=MY_VALUE))

MyBox2 + geom_boxplot()

As you can see, months are ordered correctly, but with the wrong values.

What can I do?

Answer 1

You can try

MyBox + 
  geom_boxplot()+
  xlim(GreekMonth)