If Dennis' interpretation of your request is correct then Harrell rms/
Hmisc packages provide a mechanism for restricting plotting of
contours to the region within a perimeter. He has a perimeter function
and the bplot function takes a perim argument. The reason I did not
offer it earlier is two fold: a) no test code offered and b) that I
thought you wanted contours projected on a somewhat more complex 3D
surface, i.e. a tilted plane. I have seen Sarkar illustrate
projections of contours on one of the sides of a "box". See Figure
13.7 at:
http://lmdvr.r-forge.r-project.org/figures/figures.html
It does appear that his panel.3d.contour on that page may offer the
tools for construction of your objective.
Also:
?panel.cloud # which has documentation for panel.3dwire
--
David
On Oct 22, 2010, at 11:18 PM, Dennis Murphy wrote:
Hi:
Check out this post on R-help from February, and look carefully at the
solution of Walmes Zeviani - I believe it's close to what you're
requesting:
http://r.789695.n4.nabble.com/Triangular-filled-contour-plot-td1557386.html
HTH,
Dennis
On Fri, Oct 22, 2010 at 6:15 PM, Yunting Sun <yunting....@gmail.com>
wrote:
Hello,
anyone knows if there is a way in R to draw contour on a simplex
based on a
function f(x,y,z) with domain (x+y+z = 1)?
Thank you!
gigi
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