| Maybe this belongs to the bugs list or not to an Octave ("kernel")
| list at all:
| The contributed script xcorr.m (in a subdir "imagep") can only
| process vectors, when given to it two non-string parameters. For
| that it checks
| if (is_matrix(x) || is_matrix(y))
| error("Only vectors are supported, use xcorr2 for matrix correlation");
| Shouldn't that read "!is_vector(x)" instead of "is_matrix(x)",
| simply because a vector is a (special) matrix, too?
Yes, it probably should use some other test. You should probably
contact the author of the file in question. I don't think xcorr is
distributed with Octave.