On Mon, Sep 8, 2014 at 10:41 AM, Sturla Molden <sturla.mol...@gmail.com> wrote:
> Stefan Otte <stefan.o...@gmail.com> wrote: > > > stack([[a, b], [c, d]]) > > > > In my case `stack` replaced `hstack` and `vstack` almost completely. > > > > If you're interested in including it in numpy I created a pull request > > [1]. I'm looking forward to getting some feedback! > np.asarray(np.bmat(....)) ? Josef > > As far as I can see, it uses hstack and vstack. But that means a and b have > to have the same number of rows, c and d must have the same rumber of rows, > and hstack((a,b)) and hstack((c,d)) must have the same number of columns. > > Thus it requires a regularity like this: > > AAAABB > AAAABB > CCCDDD > CCCDDD > CCCDDD > CCCDDD > > What if we just ignore this constraint, and only require the output to be > rectangular? Now we have a 'tetris game': > > AAAABB > AAAABB > CCCCBB > CCCCBB > CCCCDD > CCCCDD > > or > > AAAABB > AAAABB > CCCCBB > CCCCBB > CCCCBB > CCCCBB > > This should be 'stackable', yes? Or perhaps we need another stacking > function for this, say numpy.tetris? > > And while we're at it, what about higher dimensions? should there be an > ndstack function too? > > > Sturla > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion >
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