NumPy Random Permutation (Python Tutorial) - WTMatter

NumPy Random Permutation (Python Tutorial) - WTMatter

This is a detailed tutorial of NumPy Random Permutation. Learn to create NumPy Arrays with random permutations with the example

This is a detailed tutorial of NumPy Random Permutation. Learn to create NumPy Arrays with random permutations with the example

Random Permutations

Permutation refers to the setup for the elements where we have various combinations. In these combinations, we have given a set of numbers in which all the combinations will be given. As a result, we will get a set random number which will have the same number as we have specified but in different combinations. For example, we have an array as [8,7,6], and also we have can have other permutations as [7,8,6] and also [6,7,8] is also another combination.

The NumPy module has two methods for this permutations:

  • shuffle()
  • permutation()

Shuffling Arrays:

What we exactly do while is shuffling is changing places of the elements in the arrays. In this, we change the positions of the elements in the array with respect to our needs. But this arrangement takes place in the array itself, not outside the array.

Permutation Method

These methods work on the problem we have with the shuffle. As here we work on a separate copy of the array, and no changes are done to the original array. It also returns a re-arranged array of elements.

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