[Numpy-discussion] appending extra items to arrays

mark markbak@gmail....
Wed Oct 17 07:16:55 CDT 2007


So it seems like lists are the way to grow an array.

Interestingly enough, it is very easy to grown an array in Matlab.
Any idea how they do that (or are they slow as well?).

Mark

On Oct 11, 8:53 pm, "Adam Mercer" <ramer...@gmail.com> wrote:
> On 11/10/2007, Mark Janikas <mjani...@esri.com> wrote:
>
> > If you do not know the size of your array before you finalize it, then
> > you should use lists whenever you can.  I just cooked up a short
> > example:
>
> <snip>
>
> > ##### Result #####
> > Total Time with array: 2.12951189331
> > Total Time with list: 0.0469707035741
> > ########################################################################
> > ####
>
> > Hope this helps,
>
> That is helpful, I thought that using arrays would be much faster but
> its clearly not in this case.
>
> Thanks
>
> Adam
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