Duncan Murdoch wrote:
The normals component contains the surface normals. It is used to
help in rendering the surface, but isn't much use for your purposes.
Unfortunately, I'm not familiar enough with the internals of princomp
to tell you how to get the axes you want.
Duncan Murdoch
OK, then let me repharase it. The axes of the unit sphere are like
axes <- matrix(
c(0, 0, -1, 0, 0, 1,
0, -1, 0, 0, 1, 0,
-1, 0, 0, 1, 0, 0), 6, 3, byrow=TRUE)
taken in pairs. I'd like to transform these coordinates the same was as
in ellipse3d() and add them to the plot.
--
Michael Friendly Email: friendly AT yorku DOT ca
Professor, Psychology Dept.
York University Voice: 416 736-5115 x66249 Fax: 416 736-5814
4700 Keele Street http://www.math.yorku.ca/SCS/friendly.html
Toronto, ONT M3J 1P3 CANADA
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