+1 for more views. I agree with Fred about bundling the changes together. On Sat, Jul 14, 2012 at 6:17 PM, Frédéric Bastien <no...@nouiz.org> wrote:
> I think it is better that we bundle those change together. As it is > done for diagonal, doing it for this case as fine too. > > Fred > > On Sat, Jul 14, 2012 at 6:31 PM, Travis Oliphant <tra...@continuum.io> > wrote: > > > > In https://github.com/numpy/numpy/pull/350/files , > > > > javius provides a patch to allow field extraction from a structured > array to > > return a view instead of a copy. Generally, this is consistent with > the > > desire to have NumPy return views whenever it can. The same idea > underlies > > the change to the diagonal method. > > > > Suppose 'myarr' is a structured array with fields ['lat', 'long', > 'meas1', > > 'meas2', 'meas3', 'meas4']. > > > > Currently, > > > > myarr[['lat', 'long', 'mesa3']] will return a copy of the data in the > > underlying array. The proposal is to have this return a view, but do > it in > > a two-stage approach so that a first version returns a copy with the > > WARN_ON_WRITE flag set introduced in NumPy 1.7. A later version will > > remove the flag (and the copy). > > > > What are thoughts on this proposal and which version of NumPy it should > go > > in? > > > > -Travis > > > > > > _______________________________________________ > > NumPy-Discussion mailing list > > NumPy-Discussion@scipy.org > > http://mail.scipy.org/mailman/listinfo/numpy-discussion > > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion >
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