[Numpy-discussion] Numpy performance vs Matlab.

Christopher Barker Chris.Barker@noaa....
Fri Jan 9 15:40:25 CST 2009


Robert Kern wrote:
> Instead, if you put both arguments into ogrid:
> 
> In [4]: ogrid[0:5, 0:6]
> Out[4]:
> [array([[0],
>        [1],
>        [2],
>        [3],
>        [4]]),
>  array([[0, 1, 2, 3, 4, 5]])]
> 
> We get the kind of arrays you need. These shapes are compatible,
> through broadcasting, and together form the indices to select out the
> part of the matrix you are interested in.
> 
> However, just using the slices on the matrix instead of passing the
> slices through ogrid is faster.

So what is ogrid useful for?

Just curious...

-Chris




-- 
Christopher Barker, Ph.D.
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