Heat Maps

Question

Heat Maps

Steve Jones - SSC Editor

SSC Guru

Points: 734418
More actions
September 13, 2017 at 12:10 am

#77332

Comments posted to this topic are about the item Heat Maps

Viewing 8 posts - 1 through 7 (of 7 total)

You must be logged in to reply to this topic. Login to reply

Stewart "Arturius" Campbell SSC Guru Points: 72484 More actions · Answer 1

Really interesting, thanks Steve.

____________________________________________
Space, the final frontier? not any more...
All limits henceforth are self-imposed.
“libera tute vulgaris ex”

andrew_dale Ten Centuries Points: 1260 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: 259085 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."

source

Need an answer? No, you need a question
My blog at https://sqlkover.com.
MCSE Business Intelligence - Microsoft Data Platform MVP

Luis Cazares SSC Guru Points: 183698 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.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?

How to post data/code on a forum to get the best help: Option 1 / Option 2