[Numpy-discussion] Only integer scalar arrays can be converted to a scalar index

Chris Barker - NOAA Federal chris.barker at noaa.gov
Fri Sep 15 18:16:27 EDT 2017


No thoughts on optimizing memory, but that indexing error probably comes
from np.mean producing float results. An astype call shoulder that work.

-CHB

Sent from my iPhone

On Sep 15, 2017, at 5:51 PM, Robert McLeod <robbmcleod at gmail.com> wrote:


On Fri, Sep 15, 2017 at 2:37 PM, Elliot Hallmark <Permafacture at gmail.com>
wrote:

> Nope. Numpy only works on in memory arrays. You can determine your own
> chunking strategy using hdf5, or something like dask can figure that
> strategy out for you. With numpy you might worry about not accidentally
> making duplicates or intermediate arrays, but that's the extent of memory
> optimization you can do in numpy itself.
>

NumPy does have it's own memory map variant on ndarray:

https://docs.scipy.org/doc/numpy/reference/generated/numpy.memmap.html



-- 
Robert McLeod, Ph.D.
robbmcleod at gmail.com
robbmcleod at protonmail.com

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