Hi list,
I'm struggling with plotting a 3d data set.
I have a data frame with x,y and z values. They occur in no particular order
(ie x and y are not ordered).
However, I want to visualize the data using a contour plot.
Now, the x,y and z data going into contour() are supposed to be ordered.
My question is: Is their a quick way to re-arrange my data such that it can be
fed to contour()?
I know about interp(). However, using this, I found some strange quirks in the
interpolation that I would rather not see (both linair and non linear
interpolation).
I have plotted my data with plot3d() in the RGL package. This works fine. But I
need a 2d plot (x~y projection). Maybe I can color the plot3d() plot and use a
projected version?
Any ideas are welcome,
Regards,
Dieter
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