[R] Flip heatmap color range in base R?
bgunter@4567 @end|ng |rom gm@||@com
Sun May 12 21:00:39 CEST 2019
and note the reference to "col" in the "..." argument (and the need to
I suspect that your other questions can be similarly answered by a careful
reading of the Help file, but I have not checked. You should.
"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, May 12, 2019 at 11:02 AM Serena De Stefani <
serenadestefani using gmail.com> wrote:
> I am building a simple heat map in base R.
> This is my matrix:
> stleft = matrix(
> colnames(stleft) <- c("Narrow","Wide", "Wider")
> rownames(stleft) <- c("Person", "Object","Bare")
> The matrix looks like this:
> > stleft
> Narrow Wide Wider
> Person 0 2 4
> Object 5 6 6
> Bare 5 8 9
> To build the heat map I simply run:
> heatmap(stleft, Colv = NA, Rowv = NA, scale = "none")
> You may see it here: https://i.stack.imgur.com/KCblOm.png
> As you can see the "0" (corresponding to the narrow/person cell) appears as
> a deep red while the "9" (corresponding to the wider/bare cell) appears as
> light yellow.
> - How can I "flip" this range so that the "0" appears in a light color and
> the "9" in a deep color?
> I have also three other questions (less important at the moment):
> - How can I have a heat map with the same row/column order as my original
> - Why is the image truncated? It appears truncated in the RStudio plot
> panel and it is saved truncated. I have tried to enlarge the plot panel in
> R Studio to no avail.
> - How can I insert numbers in the cells?
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> PLEASE do read the posting guide
> and provide commented, minimal, self-contained, reproducible code.
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