Fix Python – NumPy: function for simultaneous max() and min()

Question

Asked By – Stuart Berg

numpy.amax() will find the max value in an array, and numpy.amin() does the same for the min value. If I want to find both max and min, I have to call both functions, which requires passing over the (very big) array twice, which seems slow.

Is there a function in the numpy API that finds both max and min with only a single pass through the data?

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Answer

Is there a function in the numpy API that finds both max and min with only a single pass through the data?

No. At the time of this writing, there is no such function. (And yes, if there were such a function, its performance would be significantly better than calling numpy.amin() and numpy.amax() successively on a large array.)

This question is answered By – Stuart Berg

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