I would like to have ArrayPlot[] also present the value of each cell in it, similar to the LabelingFunction that is available in other types of plots. How do I do it?
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1 Answer
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9
Like this?
SeedRandom[42, Method -> "Legacy"]; (* for reproducibility *)
mat = RandomReal[1, {3, 5}];
ArrayPlot[mat,
Epilog -> {Red, MapIndexed[Text[#1, Reverse[#2 - 1/2]] &, Reverse[mat], {2}]},
Mesh -> True]
![labeled ArrayPlot[]](https://i.sstatic.net/b9w0E.png)
answered Aug 26, 2012 at 16:09
J. M.'s missing motivation♦J. M.'s missing motivation
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$\begingroup$ +1, answers the question. How about a contrasting text color (black on white, white on black,..)? I won't be able to upvote a second time for it, though :-) $\endgroup$– stevenvhCommented Aug 26, 2012 at 16:15
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$\begingroup$ @stevenvh I guess something like
Round[1 - GrayLevel[...]]should do it $\endgroup$– rm -rf ♦Commented Aug 26, 2012 at 16:16 -
$\begingroup$ That was my first idea as well, but at 50 % gray you won't see anything :-( $\endgroup$– stevenvhCommented Aug 26, 2012 at 16:19
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$\begingroup$ @steven, $\gamma$-tweaking might do the trick in that case; I'll play around and edit this answer if I see something I like. $\endgroup$ Commented Aug 26, 2012 at 16:29