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I have a data file with results from a simple personality test, where a total of 84 points are distributed among three colors, red, green and blue. A sample score could be red=17, blue=39 and green=28.

I want to plot each persons result as a dot in a chart, but I want to avoid using a 3d coordinate system. How could I do this? Notice that the values for each of the colors would never be negative.

Does it exist some kind of triangular coordinate system? Is there already a solution to my problem in the subject of mathematics?

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    $\begingroup$ en.wikipedia.org/wiki/Ternary_plot $\endgroup$
    – user856
    Commented Nov 22, 2016 at 7:48
  • $\begingroup$ Wow, thanks! This looks really good! $\endgroup$ Commented Nov 22, 2016 at 7:54
  • $\begingroup$ This was exactly what I was looking for. If you add it as an answer, I will mark it as the accepted answer. Thanks! $\endgroup$ Commented Nov 23, 2016 at 6:52

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Ternary plot was the answer I was looking for. Thanks Rahul! http://en.wikipedia.org/wiki/Ternary_plot

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