Bug/performance issue report ?

[Olivier Mégel]

Hi Johan,

I just noticed a small issue in YALMIP that can affect the speed of the tool:

in "categorizeproblem.m", on line 414, replacing

if all(Q>=0)

by

if all(nonzeros(Q)>=0)

can greatly reduce the computation time for large Q matrix, since Q is usually quite sparse.

Best,

Olivier

[Johan Löfberg]

Ouch, that was one horrible piece of code. Thank you for alerting me.