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It is possible to create heat maps using Google Fusion Tables. This is just one feature of mapping using Google Fusion Tables. A heat map is a method of point data visualization that shows the density of points in a given area. To make a heat map from a Google Fusion Table map, simply check the “Display as heat map” box above the map.

Here is an example of a heat map showing the distribution of a fictional client population. This map is based on a set of similated clinical data used to create several types of display:

Heat map sample
Sample Heat Map

You can view the data table that generates this heat map on Google Drive:
https://www.google.com/fusiontables/DataSource?docid=1rQTx4magS9Uj8nHZW8tpVlknaa5xNLJIMH7fTQ8O

The underlying map is also available on Google Drive:
https://www.google.com/fusiontables/embedviz?q=select+col67+from+1rQTx4magS9Uj8nHZW8tpVlknaa5xNLJIMH7fTQ8O+limit+1000&viz=HEATMAP&h=true&lat=41.8628880425996&lng=-87.84012013876094&t=1&z=13&l=col67&y=2&tmplt=3&hmd=true&hmg=%2366ff0000%2C%2393ff00ff%2C%23c1ff00ff%2C%23eeff00ff%2C%23f4e300ff%2C%23f4e300ff%2C%23f9c600ff%2C%23ffaa00ff%2C%23ff7100ff%2C%23ff3900ff%2C%23ff0000ff&hmo=0.63&hmr=24&hmw=0&hml=GEOCODABLE

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