Normally the workflow is:
png("heatmap.png") # don't forget the second quote, as you did below
my.plot.code # whatever you need to draw the heatmap
dev.off() # people often forget this step - did you?
You'll probably want to adjust the size and resolution settings for
png() to get the desired high-resolution output; see ?png for details.
Sarah
On Sun, Sep 9, 2012 at 10:04 AM, STADLER Frederic
<[email protected]> wrote:
> Hey, I am still working on my heat map (for those who are read my previous
> post about row.names)…
> Now, I would like to save my heat map.2 in .png or .tiff in order being able
> to work on the picture in photoshop, but it doesn't work.
> I'am using (as I have found on some forum)
>> png("heatmap.2.png) # and it just doesn't work. when I try doing it with::
>>jpeg("heatmap.2.jpeg) # it works once every 10 times, but it's a 22kb file.
>>completely use less !!!
>
> I really need to have high quality image, as I will have to work on photoshop
> and also I will have to cut and zoom in just some lines of my heatmap.
>
> #here is the code I use for my heatmap.2 :
>>heatmap.2(a_matrix, Rowv=NA, Colv =NA, col=greenred(60), scale="column",
>>margins=c(7,10), trace="none", density.info=c("none"))
>
> Does someone know what I have to do in order to get my heatmap.2.png ??? Do I
> need some other package (I only use gplots, to allow the heatpmap.2)
>
> THANKS for your help
> Fred
>
--
Sarah Goslee
http://www.functionaldiversity.org
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