A reproducible example would help here (you cannot assume we know what type "miRNA" is) but guessing from the use of "reorder" I suspect it is a factor. In which case after you subset you will need to use the droplevels function to remove the unused levels, and then plot that prepared data.
On October 14, 2018 8:51:29 PM PDT, Bert Gunter <bgunter.4...@gmail.com> wrote: >If I understand correctly, just subset your sorted data. > >e.g. : > >x <- runif(50) >## 50 unsorted values > >sort(x, dec = TRUE)[1:10] >## the 10 biggest > > >-- Bert > > > >Bert Gunter > >"The trouble with having an open mind is that people keep coming along >and >sticking things into it." >-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) > > >On Sun, Oct 14, 2018 at 7:13 PM Jeff Reichman <reichm...@sbcglobal.net> >wrote: > >> R-Help Forum >> >> I'm using the following code to reorder (from highest to lowest) my >miRNA >> counts. But there are 500 plus and I only need the first (say) >15-20. How >> do I limit ggplot to only the first 20 miRNA counts >> >> ggplot(data = corr.m, aes(x = reorder(miRNA, -value), y = value, fill >= >> variable)) + >> geom_bar(stat = "identity") >> >> Jeff >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > [[alternative HTML version deleted]] > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code. -- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
