nlcpy.random.Generator.permutation¶
-
Generator.
permutation
(self, x)¶ Randomly permutes a sequence, or returns a permuted range.
If x is a multi-dimensional array, it is only shuffled along it first index.
- Parameters
- xint or array_like
If x is an integer, randomly permute
vp.arange(x)
. If x is an array, make a copy and shuffle the elements randomly.
- Returns
- outndarray
Permuted sequence or array range.
Examples
>>> import nlcpy as vp >>> rng = vp.random.default_rng() >>> rng.permutation(10) array([1, 7, 4, 3, 0, 9, 2, 5, 8, 6]) # random >>> rng.permutation([1, 4, 9, 12, 15]) array([15, 1, 9, 4, 12]) # random >>> arr = vp.arange(9).reshape((3, 3)) >>> rng.permutation(arr) array([[6, 7, 8], # random [0, 1, 2], [3, 4, 5]])