OK, I needed to plot a set of vectors on top of a contour plot. I
figured out a way to do this. I create a panel function that calls
"larrows()" with arguments constructed from my vector data. Then, when
I go to do the contour plot, I call contourplot() with the "panel"
argument set to point to my newly created panel function.
So far, so good.
Now, I need to do a series of contour plots, each overlaid with a
different set of vectors. I can call contourplot(z~x*y,...) but now
I'm stuck, because each contour plot will be overlaid with the *same*
vector plot. This won't work because each set of contoured data has its
own particular set of associated vector data. (BTW, I am not doing
gradients here. The vector data is its own entity, not derivable from
the contoured data.) Can I somehow define a whole series of panel
functions and coax contourplot() to choose the right one for each of its
plots? Or do I have to revise my entire approach here?
Thanks!
--Sam
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
