np remove lines from array code example

Example 1: python numpy array delete multiple columns

a = [[ 0  1  2  3], 
     [ 4  5  6  7], 
     [ 8  9 10 11]]

print(np.delete(a, [0, 3], 1))

# [[ 1  2]
#  [ 5  6]
#  [ 9 10]]

Example 2: how to remove first row of numpy array

x = numpy.delete(x, (0), axis=0)