On Wed, Aug 12, 2009 at 9:29 AM, Scott Sinclair <scott.sinclair...@gmail.com > wrote:
> >2009/8/12 Keith Goodman <kwgood...@gmail.com>: > > On Wed, Aug 12, 2009 at 7:24 AM, Keith Goodman<kwgood...@gmail.com> > wrote: > >> On Wed, Aug 12, 2009 at 1:31 AM, Lars > >> Bittrich<lars.bittr...@googlemail.com> wrote: > >>> > >>> a colleague made me aware of a speed issue with numpy.identity. Since > he was > >>> using numpy.diag(numpy.ones(N)) before, he expected identity to be at > least as > >>> fast as diag. But that is not the case. > >>> > >>> We found that there was a discussion on the list (July, 20th; "My > identity" by > >>> Keith Goodman). The presented solution was much faster. Someone > wondered if > >>> the change was already made in the svn. > >> > >> Things tend to get lost on the mailing list. The next step would be to > >> file a ticket on the numpy trac. (I've never done that) That would > >> increase the chance of someone important taking a look at it. > > > > Here's the ticket: > > > > http://projects.scipy.org/numpy/ticket/1193 > > > > A patch against recent SVN trunk is attached to the ticket. Please > review... > Already done. Thanks. Chuck
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