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Asked: 2026-06-08T22:07:34+00:00

I hope you can help me. In this graphics you can see the density

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I hope you can help me. In this graphics

Graphics

you can see the density D versus Phi and Sigma for a numeric data set. How can I plot such graphics in Excel or R? I have googled around but nothing found yet.

Thank you.

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1 Answer

  1. Editorial Team

    Try filled.contour. I edited the example given in the documentation slightly (added nlevels = 5) and got the following:

    enter image description here

    It looks somewhat like what you want, but it’s going to be hard to recreate your examples without data. For reference, here is the code I used:

    require(grDevices) # for colours
filled.contour(volcano, color = terrain.colors, asp = 1, nlevels=5)
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