remove value from np array code example

Example 1: remove element from np array

import numpy as np

a = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9])
index = [2, 3, 6]

new_a = np.delete(a, index)

print(new_a) #Prints `[1, 2, 5, 6, 8, 9]`

Example 2: remove nana from np array

x = x[~numpy.isnan(x)]

Example 3: 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])