concatenate and non-contiguous arrays?
Hi all, I just noticed that np.concatenate does not necessarily produce contiguous arrays. I has figured that it was making a copy, so would produce a C-contiguous array, but not so: In [88]: a = np.arange(60).reshape((4,5,3)) In [89]: b = np.concatenate((a, a[:, -1:, :]), axis=1) In [90]: b.flags Out[90]: C_CONTIGUOUS : False F_CONTIGUOUS : False OWNDATA : False WRITEABLE : True ALIGNED : True UPDATEIFCOPY : False I'm also not sure why OWNDATA is false is it sharing data with somethign else? It doesn't look like it is with a. I'll toss a ascontiguous() in my code to take care of this, but I'd like to understand it. Explanation? -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception Chris.Barker@noaa.gov
participants (1)
-
Christopher Barker