User talk:140.192.166.171

interpolation
the term "heat map" is something of an abomination for folks who make and work with thematic maps. the term usually refers to some form of mathematical interpolation where values for locations that are not measured are estimated using measured values at known locations, normally represented as a raster layer. this article needs a lot of work to incorporate a more thematic cartographic understanding of this category of thematic map and to clearly explain methods of interpolation as currently used.

Pmchaffie (talk) 13:13, 1 October 2018 (UTC)