On Mon, 2013-06-03 at 10:44 +0200, Chao YUE wrote: > Dear all, > > I have an array with 4 dim: > > In [24]: dd.shape > Out[24]: (12, 13, 120, 170) > > I would like to collapse the last two dim for applying np.sum(axis=-1) > If you use Numpy >= 1.7. you can also just use dd.sum(axis=(-1,-2))
- Sebastian > In [25]: dd.reshape(12,13,-1).shape > Out[25]: (12, 13, 20400) > > is there a more general way to do this? something like > In [21]: dd.reshape(*dd.shape[0:2],-1).shape > ------------------------------------------------------------ > File "<ipython console>", line 1 > SyntaxError: only named arguments may follow *expression (<ipython > console>, line 1) > > thanks a lot for any hints, > > cheers, > > Chao > > -- > *********************************************************************************** > Chao YUE > Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL) > UMR 1572 CEA-CNRS-UVSQ > Batiment 712 - Pe 119 > 91191 GIF Sur YVETTE Cedex > Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16 > > ************************************************************************************ > _______________________________________________ > 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
