[Numpy-discussion] Notes from the numpy dev meeting at scipy 2015

[Marten van Kerkwijk]

Hi Nathaniel,

Thanks for the detailed reply; it helped a lot to understand how one could,
indeed, have dtypes contain units. And if one had not just on-the-fly
conversion from int to float as part of an internal loop, but also
on-the-fly multiplication, then it would even be remarkably fast. Will be
interesting to think this through in more detail.

Still think subclassing ndarray is not all *that* bad (MaskedArray is a
different story...), and it may still be needed for my other examples, but
perhaps masked/uncertainties do work with the collections idea. Anyway, it
now makes sense to focus on dtype first.

Thanks again,

Marten
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