Option to include key for RMSIP matrix heatmap

[Damien OHalloran]

are there arguments to specify a key for the heatmap function plot?

heatmap(1 - modes$rmsip, symm=TRUE)

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[Xinqiu Yao]

Hi,

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The stats::heatmap() does not have a key. But you can try the heatmap.2() from the gplots package, which gives you an option to set the key.

[George Tzotzos]

Can you be more specific? I assume that you mean to load first library(ggplot). If this assumption is correct, how then does one set the key? An associated question is how does one change the colour of the heat map, for example to “greens”? Thanks in advance for any suggestions.

[Xinqiu Yao]

It is not “ggplot”. It is a package called gplots. After library(gplots), type ?heatmap.2 and you will see the description about how to setup a “key”. The same place, you can see the detail of how to change colors by ‘col’.

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For example, heatmap.2(x, key=TRUE, col=terrain.colors())

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[George Tzotzos]

gplots works. Not very pretty, but works. I tried “clustermap” of Seaborn (python package). This worked for me much better.