[python error]ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

A[0,0] = min(min(A)) #make it least so that it is not included in the selection

: np.min()

__nonzero__ ()
Truth-value testing for the array as a whole. It is called whenever the truth value of the ndarray as a whole object is required. This raises an error if the number of elements in the the array is larger than 1 because the truth value of such
arrays is ambiguous. Use .any() and .all() instead to be clear about what is meant in such cases. If the number of elements is 0 then False is returned. If there is one element in the array, then the truth-value of this element is returned.

find a minimum value in an array of floats

 

how to check if array is not empty?

array.size !=0

 

 

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