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Heat Maps


Heat Maps

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Steve Jones
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Comments posted to this topic are about the item Heat Maps

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Really interesting, thanks Steve.

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The answer was the title!
However it wasn't obvious what language this was for. Only spotted that the Category was R language in the question list at the bottom, but nothing in the question itself.
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I see no essential difference between a heat map and a 2D contour plot. As in e.g. https://se.mathworks.com/matlabcentral/answers/152662-creating-a-simple-contour-plot-heat-map?
matthew.flower
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It is not a "heat map" because that implicitly required clustering - reducing the data values, which is why the Cran R project provides the pheatmap function.
The image function is a simple 2d plot of the matrix values.
erb2000
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Crap, all I had to do was read the title and I would have got it right.
Koen Verbeeck
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matthew.flower - Wednesday, September 13, 2017 3:08 AM
It is not a "heat map" because that implicitly required clustering - reducing the data values, which is why the Cran R project provides the pheatmap function.
The image function is a simple 2d plot of the matrix values.

In the general definition, a heat map is a plot of matrix values using color. There's no mention of clustering.

"A heat map (or heatmap) is a graphical representation of data where the individual values contained in a matrix are represented as colors."

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Luis Cazares
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andrew_dale - Wednesday, September 13, 2017 1:46 AM
The answer was the title!
However it wasn't obvious what language this was for. Only spotted that the Category was R language in the question list at the bottom, but nothing in the question itself.


I missed the title BigGrin


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