Apr 22, 2020 · numpy.count_nonzero () function counts the number of non-zero values in the array arr. Syntax : numpy.count_nonzero (arr, axis=None)

Apr 25, 2018 · - indices: numpy equivalent of list.index - count: numpy equivalent of collections.Counter - mode: find the most frequently occuring items in a set - multiplicity: number of occurrences of each key in a sequence - count\_table: like R's table or pandas crosstab, or an ndim version of np.bincount Some brief examples to give an impression hereof: