How to adjust the color of dots basing on the value?

[Anthony]

I am going to create a heatmap to display the price of each house in a
city.

So I prefer the color to reflect the price such as

red $10000-$50000
yellow $5000-$9999
white $1-$4999

And I noticed in the points.txt, there is a value in the beginning of
each line:

315,26.140000,-81.795000


I created an isolated spot and tried to adjust the value. But the
color is not changed following the value.

Please suggest on how to implement it, thanks a lot~

[Chad Whitacre]

Try adding multiple points to the same location. So maybe add one point per $1000 and iterate from there.

chad

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