Heat Maps

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Heat Maps

Steve Jones - SSC Editor

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September 13, 2017 at 12:10 am

#77332

Comments posted to this topic are about the item Heat Maps

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Stewart "Arturius" Campbell SSC Guru Points: 72634 More actions · Answer 1

Really interesting, thanks Steve.

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andrew_dale Ten Centuries Points: 1280 More actions · Answer 2

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.

morlindk SSCrazy Points: 2294 More actions · Answer 3

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 Default port Points: 1414 More actions · Answer 4

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 SSCommitted Points: 1697 More actions · Answer 5

Crap, all I had to do was read the title and I would have got it right.

Koen Verbeeck SSC Guru Points: 259115 More actions · Answer 6

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 SSC Guru Points: 183706 More actions · Answer 7

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 😀

Luis C.
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