PYTHON

NumPy roll Example

# welcome to softhunt.net
# Python Program illustrating
# numpy.roll() method

import numpy as np

array = np.arange(9).reshape(3, 3)
print("Original array : 
", array)

# Rolling array; Shifting one place
print("
Rolling with 1 shift : 
", np.roll(array, 1))

# Rolling array; Shifting five places
print("
Rolling with 5 shift : 
", np.roll(array, 5))

# Rolling array; Shifting five places with 0th axis
print("
Rolling with 2 shift with 0 axis : 
", np.roll(array, 2, axis = 0))

numpy roll

import numpy as np
from scipy.ndimage.interpolation import shift

xs = np.array([ 0.,  1.,  2.,  3.,  4.,  5.,  6.,  7.,  8.,  9.])

shift(xs, 3, cval=np.NaN)

NumPy roll Syntax

numpy.roll(array, shift, axis = None)