On 10/02/2010 11:07 AM, Michael Friendly wrote:
Duncan Murdoch wrote:
On 10/02/2010 9:33 AM, Michael Friendly wrote:
[Env: Tested under Win Xp, R 2.9.2 and R 2.10.1; sessionInfo() at end]
This is probably a bug in rgl, and I can reproduce it. Bugs in
contributed packages are best sent to the maintainer of the package,
because otherwise they might be lost. In this case I did see it, so
no need for you to do anything more.
Duncan Murdoch
Thanks, Duncan
FMI, if you (or anyone) has pointers on how to debug such things, I'd
like to learn.
I tracked this down. It's a bug in rgl, but likely also a bug in
heplots. At line 93 of heplot3d.mlm.R, called from line 198 in the same
file, there's a call
texts3d(x[which.max(x[,2]),] + offset*ranges, adj=0, texts=label,
color=col, lit=FALSE)
At this point "label" is NULL, and that crashes rgl. I'll fix rgl so
there's no crash, but I suspect that heplots probably meant to pass a
non-null label here.
Duncan Murdoch
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