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I'm using the ggplot R package, I did this plot with the code below:

p3 = data.frame(cbind(c(1:70), c("G1" , "G2" , "G1" , "G1" , "G1" , "G2" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1", "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G2" , "G1" , "G2" , "G1" , "G1" , "G1" , "G1" , "G1" , "G2" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G2" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G1" , "G2"), c(rep("B",35),rep("C",15),rep("A",20)) )) colnames(p3)=c("Num","L" , "G") library(ggthemes) library(ggplot2) pp <- ggplot(p3, aes(Num, G)) + geom_tile(aes(fill = L), colour = "white") pp + theme(legend.position="bottom", axis.text.x = element_text(angle=90, size=7,vjust=0.5)) + # scale_fill_grey() + theme_classic() scale_fill_manual(values=c("#990000","#E69F00","#999999"))

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I would like to change the order of y-axis values according to the number of bars (= variable G)

The expected plot:

enter image description here

Thanks a lot for your helps !

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2 Answers 2

Reset to default
2

Change levels for p3$G according to sorted table of p3$G variable:

p3$G <- factor(p3$G, names(sort(table(p3$G)))) sort(table(p3$G)) # C A B # 15 20 35
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Thank you for this solution !
1

You can set how you want the G column of your dataframe to be ordered by setting it to type factor, and setting the levels. This can all be done with:

levels(p3$G) <- c("C", "A", "B")
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