[R] R PNG graph width limitation

[Yihui Xie]

Well, if you don't care about its width, I'd suggest you use the pdf()
device instead, e.g.

# 200 inches!
pdf("hugeplot.pdf", width = 200, height = 200)
par(mar = rep(0, 4))
plot(rnorm(10000), pch = 19)
dev.off()

Regards,
Yihui
--
Yihui Xie <xieyihui at gmail.com>
Phone: 515-294-6609 Web: http://yihui.name
Department of Statistics, Iowa State University
3211 Snedecor Hall, Ames, IA



2009/9/22 Zhengping Huang <zhengping at gmail.com>:
> Thanks a lot Yihui for your kindness and help.  Yes I do need that graph.  I do not care about resolution as long as it's human readable.  Please suggest how I can make that work.
>
> Thanks again,
>
> Zhengping
>
>
> On Tue, Sep 22, 2009 at 10:06 AM, Yihui Xie <xieyihui at gmail.com> wrote:
>>
>> Given the DPI=72, do you really need a graph that's wider than 450
>> inches? Or can you really read a picture that is so wide?
>>
>> Regards,
>> Yihui
>> --
>> Yihui Xie <xieyihui at gmail.com>
>> Phone: 515-294-6609 Web: http://yihui.name
>> Department of Statistics, Iowa State University
>> 3211 Snedecor Hall, Ames, IA
>>
>>
>>
>> On Tue, Sep 22, 2009 at 11:30 AM, zphnabr <zhengping at gmail.com> wrote:
>> >
>> > Hi folks,
>> >
>> > I am trying to do a clustering and generate a long dendrogram in R on Linux
>> > server:
>> > =========
>> > data<-read.table(file="mean_ratio.txt.noheader",row.names=1,sep="\t",quote="\"")
>> > hc<-hclust(dist(data),"ward")
>> > png(file="mean_ratio.txt.noheader.ward.png",bg="white",pointsize=8,width=32767,height=1536)
>> > plot(hc,hang=-1)
>> > dev.off()
>> > =========
>> >
>> > I found that 32767 is the largest width I can go.  I tried 32768 and the
>> > graphics becomes all black.  I need to go higher since even with 32767 width
>> > is not enough for the dendrogram.  What is the problem and what is the
>> > workaround?
>> >
>> > Thanks,
>> >
>> > zphnabr
>> > --
>> > View this message in context: http://www.nabble.com/R-PNG-graph-width-limitation-tp25530814p25530814.html
>> > Sent from the R help mailing list archive at Nabble.com.
>> >
>> > ______________________________________________
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>> > 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.
>> >
>
>