PYTHON

numpy.sign() in Python

#Use numpy sign method will return array with corresponding signs
import numpy as np
arr = np.array([-10, 0, 15])
print(np.sign(arr))  # will return [-1, 0, 1]

numpy sign method

# sign method return 0 if the values in the array is 0,
# 1 is the value is greater than 0
# and -1 when the value is less than 0
import numpy as np

arr = [-10, 0, 15]

print(arr.sign) # will return [-1, 0, 1]