np where delete code example

Example 1: delete values with condition in numpy

a = np.array([1,2,3,4,5,6])

out = np.logical_not(a < 3) 

print(out) # array([False, False,  True,  True,  True,  True])
print(a[out]) # array([3, 4, 5, 6])

Example 2: remove all the elements from a numpy array python

np_array = np.array([])