[SciPy-user] Best way to test several values

Jose Luis Gomez Dans josegomez@gmx....
Mon Oct 20 09:05:40 CDT 2008

I have a 2D array of numbers, and I want to use "where" to effectively mask
bits of the array out. Essentially, if any element in this 2D array of
numbers belongs to a given list (stored as a 1D array), the condition should
be e.g., True.

Up to now, I have used numpy.any ( data==QA ), where data is a single element
of my 2D array, and QA is my acceptance values list. However, I need to loop
through elements, and is taking a long time.

Any hints? numpy/scipy seems to have a plethora of clever functions to this
sort of thing efficiently!

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