Update on Memory problem with NumPy arrays

[sonjaa]

I've been in contact with Travis O, and he said it was fixed in the
SVN.
thanks for the suggestions, I'll try them out now.

best
Sonja


Filip Wasilewski wrote:
> sonjaa wrote:
> > Hi
> >
> > last week I posted a problem with running out of memory when changing
> > values in NumPy arrays. Since then I have tried many different
> > approaches and
> > work-arounds but to no avail.
> [...]
>
> Based on the numpy-discussion this seems to be fixed in the SVN now(?).
>
> Anyway, you can use 'where' function to eliminate the loops:
>
> from numpy import *
>
> y = ones((501,501))
> z = zeros((501,501))
> it = 50
>
> for kk in xrange(it):
>     y[1,1] = 4
>     y[1,2] = 4
>     y[1,0] = 4
>     y[2,1] = 6
>
>     print "Iteration #:%s" %(kk)
>     y = where((y == 4) | (y == 6), 2, y) 
> 
> 
> best,
> fw