numpy.where

Peter Pearson ppearson at nowhere.invalid
Fri Apr 10 05:40:55 CEST 2009


On Thu, 09 Apr 2009 09:09:18 -0400, Lou Pecora wrote:
>
> Thanks, Neil.  Always something to learn.  I've used Numpy for several 
> years, but still have not plumbed the depths.  Just tried this script 
> and, yep, it works.
>
>       arr=array([-1,1.0,2.2,-10.0,1.1, 0.9,-0.9])
>       cond= arr < 1.0
>       print cond
>       brr=arr[cond]
>       print brr
>
> Output:
>
> [ True False False  True False  True  True]
> [ -1.  -10.    0.9  -0.9]
>
> Really,  I've gotta RTFM. :-)

Hey, if you find TFM, please tell me where it is.  I haven't
found anything Fine.  I even bought Travis Oliphant's book,
which helps a little, but . . . 

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