Displaying 2 results from an estimated 2 matches for "loess_workspace".
2013 Mar 01
1
predict.loess() segfaults for large n?
Hi,
I am segfaulting when using predict.loess() (checked with r62092).
I've traced the source with the help of valgrind (output pasted
below) and it appears that this is due to int overflow when
allocating an int work array in loess_workspace():
liv = 50 + ((int)pow((double)2, (double)D) + 4) * nvmax + 2 * N;
where liv is an (global) int. For D=1 (one x variable), this
overflows at approx N = 4089 where N is the fitted sample size (not
prediction sample size).
I am aware that you are in the process of introducing long vectors
but...
2003 Jul 01
1
Warning message in scatter.smooth (modreg)
Dear list,
In using the scatter.smooth() function (modreg) on a small data set (100
obs) the following error was produced:
> scatter.smooth(Na, S)
Warning message:
k-d tree limited by memory. ncmax= 200
I haven't used scatter.smooth much but when I have, I haven't seen this
message before.
gc() returns
> gc()
used (Mb) gc trigger (Mb)
Ncells 417693 11.2 667722