[Numpy-discussion] MATLAB to Numpy
berceanu at runbox.com
Fri Oct 27 11:43:38 EDT 2017
Hmm, so how come this doesn't work now?
mask = ((px > 2.) & ((py**2 + pz**2) / px**2 < 1.))
for arr in (px, py, pz, w, x, y, z):
arr = arr[mask]
On Mon, 23 Oct 2017 15:05:26 +0200 (CEST), "Andrei Berceanu" <berceanu at runbox.com> wrote:
> Thank you so much, the solution was much simpler than I expected!
> On Sat, 21 Oct 2017 23:04:43 +0200, Daπid <davidmenhur at gmail.com> wrote:
> > On 21 October 2017 at 22:32, Eric Wieser <wieser.eric+numpy at gmail.com>
> > wrote:
> > > David, that doesn’t work, because np.cumsum(mask)[mask] is always equal
> > > to np.arange(mask.sum()) + 1. Robert’s answer is correct.
> > >
> > Of course, you are right. It makes sense in my head now.
> > _______________________________________________
> > NumPy-Discussion mailing list
> > NumPy-Discussion at python.org
> > https://mail.python.org/mailman/listinfo/numpy-discussion
> NumPy-Discussion mailing list
> NumPy-Discussion at python.org
More information about the NumPy-Discussion