[R] order stacked bar plot from total frequency

[Jim Lemon]

Hi Kai,
I don't know about ggplot, but it may be easier to do it before plotting:

set.seed(753)
testdat<-matrix(sample(1:10,9),nrow=3)
# first plot the raw matrix
barplot(testdat)
# then plot the matrix ordered by column sums
barplot(testdat[,order(colSums(testdat))])

Jim

On Fri, Sep 17, 2021 at 4:01 AM Kai Yang via R-help
<r-help using r-project.org> wrote:
>
> Hello List,
> I can order the general bar chart based on frequency, using ggplot2 with the code : aes((reorder(Var1, Freq)), Freq))
> I don't know how to order stacked bar plot by total frequency
> Can you give me some of example?
> Thank you
> Kai
>
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