[Numpy-discussion] Distance Formula on an Array
Eric Firing
efiring@hawaii....
Sun Apr 26 15:49:24 CDT 2009
Ian Mallett wrote:
> It would be:
> numpy.where(array<d)
> right?
Almost. where(cond) is equivalent to nonzero(cond), and both return
tuples. Assuming your array is 1-D, you can use:
numpy.where(array<d)[0]
numpy.nonzero(array<d)[0]
numpy.flatnonzero(array<d)
But do you really need the indices? If what you need is values of some
array at those locations, then index directly with the condition:
A_subset = A[array<d]
Eric
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