[Octave-bug-tracker] [bug #53817] nonlin_residmin() fails at call to svd()

[Michael Leitner]

Follow-up Comment #6, bug #53817 (project octave):

No, this shouldn't need to be so complicated: according to the documentation
for 4.2.2
(https://octave.org/doc/v4.2.2/Matrix-Factorizations.html#Matrix-Factorizations):
"If given a second argument, svd returns an economy-sized decomposition,
eliminating the unnecessary rows or columns of U or V." I interpret this to
mean *any* second argument.

4.4.0
(https://octave.org/doc/interpreter/Matrix-Factorizations.html#Matrix-Factorizations)
says "When given a second argument that is not 0, svd returns an economy-sized
decomposition, eliminating the unnecessary rows or columns of U or V." So to
me it seems that it should suffice to just change the 0 to a 1 (or anything
else) in the call to svd, as I said in my previous comment, no need to switch
on the version. It is just an unhappy coincidence that the optim package used
the specific value 0 that later gained a special meaning, when it could also
have used anything else.

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?53817>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/