[R] limit bar graph output

Jeff Reichman re|chm@nj @end|ng |rom @bcg|ob@|@net
Mon Oct 15 23:28:11 CEST 2018




I just resorted and took the top 30 and then reordered again in the geom_bar function – below



  geom_bar(aes(x=reorder(CourseName, -n), y=n),fill = "dark blue", stat="identity")+

  theme(axis.text.x = element_text(angle = 60, hjust = 1))




From: Bert Gunter <bgunter.4567 using gmail.com> 
Sent: Sunday, October 14, 2018 10:51 PM
To: reichmanj using sbcglobal.net
Cc: R-help <r-help using r-project.org>
Subject: Re: [R] limit bar graph output


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 <reichmanj using sbcglobal.net <mailto:reichmanj using 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")


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