Sort boxplot by mean (and not median) in R

Question

I have a simple boxplot, showing the distribution of a score for factor TYPE:

myDataFrame = data.frame( TYPE=c(\"a\",\"a\",\"b\",\"b\",\"c\",\"c\"), SCORE=c(         


        

Answer 1

This is a job for reorder():

myDataFrame$TYPE <- with(myDataFrame, reorder(TYPE, SCORE, mean))
boxplot( SCORE~TYPE, data=myDataFrame )