'numpy.ndarray' object has no attribute 'index' code example

Example 1: 'numpy.ndarray' object has no attribute 'append'

#instead of name_array.append(number) use numpy.append(name_array, number)
#insted of:
a = [1,2,3,4]
a.append(5)
#use:
a = [1,2,3,4]
numpy.append(a, 5)

Example 2: 'numpy.ndarray' object has no attribute 'count'

>>> a = numpy.array([0, 3, 0, 1, 0, 1, 2, 1, 0, 0, 0, 0, 1, 3, 4])
>>> unique, counts = numpy.unique(a, return_counts=True)
>>> dict(zip(unique, counts))
{0: 7, 1: 4, 2: 1, 3: 2, 4: 1}