numpy.max or max ? Which one is faster?

python numpy runtime max min
Froyo picture Froyo · Jun 8, 2012 · Viewed 47.7k times · Source

In python, which one is faster ? 

numpy.max(), numpy.min()

or

max(), min()

My list/array length varies from 2 to 600. Which one should I use to save some run time ?

Answer

gorlum0 picture gorlum0 · Jun 8, 2012

Well from my timings it follows if you already have numpy array a you should use a.max (the source tells it's the same as np.max if a.max available). But if you have built-in list then most of the time takes converting it into np.ndarray => that's why max is better in your timings.

In essense: if np.ndarray then a.max, if list and no need for all the machinery of np.ndarray then standard max.

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