How to make a scatter 2D triangular plot?

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1

When each point has 3 values (like in RGB), you may plot a 3D scatter plot.
But there is a different way that I haven´t found: a triangular 2D plot, with 3 axes.
Will you help me to find or produce it?

2

These are called ternary diagrams. GitHub - marcharper/python-ternary: Ternary plotting library for python with matplotlib

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3

Great, thanks! I’ll give it a try.