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help for hmap
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Heatmap graphs

        hmap varlist  [, monochrome scatter ]

hmap uses the three variables in varlist to graph a heatmap. The first two
variables specify x and y coordinates; the third specifies the "heat" or
amplitude to graph at that (x,y) coordinate.  Option monochrome specifies a
grayscale heatmap.  Option scatter places numerical values of the amplitude at
each grid point.


Example

   clear all
   set obs 64
   g n=int(uniform()*10)
   g x=1+int((_n-1)/8)
   g y=1+mod((_n-1),8)
   la def xlab 1 "one" 2 "two" 7 "seven" 8 "eight"
   la def ylab 3 "three" 4 "four" 5 "five" 6 "six"
   la val x xlab
   la val y ylab
   ta y x [fw=n]
   hmap x y n
   hmap x y n, sc
    
Author of hmap

        Austin Nichols
        <austinnichols@gmail.com>

Acknowledgments

    This program was suggested by Brendan Halpin <brendan.halpin@ul.ie>.

Also see

On-line:  help for tddens (if installed; findit tddens to download).