Hello all- I am having trouble with the cell sizes that heatmap defaults
too. I have a matrix of 160 rows and 5 columns that I am trying to display
with heatmap(). When I do this, the cells default to really wide and very
short. This makes the labels for the rows very hard to read, in fact the
only way I can read them is to make the jpeg output very large and zoom in,
and even then it's hard to read and the cells are so wide that you can't
see the dendrogram while seeing the labels. I would like to try to have a
tall, skinny heatmap with row labels big enough to read.
I was able to get closer to what I want with this command...
jpeg(file = "view_heat.jpg",width = 4000, height = 6000)
heatmap(elmat,col= brewer.pal(9,"PuOr"), cexCol = .8, margin = c(.01,130)) #
dev.off()
but it only uses a quarter of the jpeg and it is still really hard to see
both the dendrogram on the left and read the labels on the right. Is there a
way I can set the actual width and height of the cells so I can use the full
size of the jpeg and read my labels?
thanks in advance
Ivan
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