[Numpy-discussion] indexing bug in numpy r2694 (original) (raw)

Travis Oliphant oliphant at ee.byu.edu
Wed Jun 28 14:47:32 EDT 2006


Keith Goodman wrote:

On 6/28/06, Pau Gargallo <pau.gargallo at gmail.com> wrote:

i don't know why 'where' is returning matrices. if you use:

idx = where(y.A > 0.5)[0]

everything will work fine (I guess) What about the second issue? Is this expected behavior? idx array([0, 1, 2]) y matrix([[ 0.63731308], [ 0.34282663], [ 0.53366791]]) y[idx] matrix([[ 0.63731308], [ 0.34282663], [ 0.53366791]]) y[idx,0] matrix([[ 0.63731308, 0.34282663, 0.53366791]]) I was expecting a column vector. This should be better behaved now in SVN. Thanks for the reports.

-Travis



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