Asked By – Navi
Can you suggest a module function from numpy/scipy that can find local maxima/minima in a 1D numpy array? Obviously the simplest approach ever is to have a look at the nearest neighbours, but I would like to have an accepted solution that is part of the numpy distro.
Now we will see solution for issue: Finding local maxima/minima with Numpy in a 1D numpy array
If you are looking for all entries in the 1d array
a smaller than their neighbors, you can try
numpy.r_[True, a[1:] < a[:-1]] & numpy.r_[a[:-1] < a[1:], True]
You could also smooth your array before this step using
I don’t think there is a dedicated function for this.
This question is answered By – Sven Marnach
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