On Tue, Feb 21, 2017 at 3:05 PM, Alex Rogozhnikov < alex.rogozhnikov@yandex.ru> wrote:
a question about numpy.recarray: There is a parameter order in constructor https://docs.scipy.org/doc/ numpy-1.10.1/reference/generated/numpy.recarray.html, but it seems to have no effect: x = numpy.recarray(dtype=[('a', int), ('b', float)], shape=[1000], order='C')
you are creating a 1D array here -- there is no difference between Fortran and C order for a 1D array. For 2D: In [2]: x = numpy.recarray(dtype=[('a', int), ('b', float)], shape=[10,10], order='C') In [3]: x.strides Out[3]: (160, 16) In [4]: y = numpy.recarray(dtype=[('a', int), ('b', float)], shape=[10,10], order='F') In [5]: y.strides Out[5]: (16, 160) note the easier way to get the strides, too :-) -CHB -- 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