[R] limit bar graph output

[Jeff Newmiller]

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.4567 using 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 <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")
>>
>> Jeff
>>
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>
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>
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-- 
Sent from my phone. Please excuse my brevity.