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CJ
Calcite | Level 5 CJ
Calcite | Level 5
Hi all,

I have a dataset with x and y variables. I want to plat these variables on an x-y plot and overlay a heat map that shows the concentration of the points at a given area on the chart. So, the more (x-y-)points there are closely around a point, the darker/redder the colour. of the heat map.

Does anyone have any ideas of how to represent that?

Many thanks,

Chris
1 REPLY 1
GraphGuy
Meteorite | Level 14
There are ways to color the areas behind the plot markers in a gplot (using annotate). And you could do some calculations on the data to do summary counts of the number of obsns/markers in each area, and color the areas accordingly.

I don't have an example that does that 'exact' thing, but here's one that is close:

http://robslink.com/SAS/democd22/heatmap.htm

http://robslink.com/SAS/democd22/heatmap_info.htm

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