Group Abstract

Message Boards

WOLFRAM COMMUNITY

4.2K Views

4 Replies

3 Total Likes

View groups...

Follow this post

Share this post:

GROUPS:

Mathematics Wolfram Language Symbolic Computations

Generate new lists with the same order using RandomSample?

M.A. Ghorbani

M.A. Ghorbani, University of Tabriz

Posted 6 years ago

Hi I have two lists as below : List1 = {a1, b1, c1, d1} List2 = {a2, b2, c2, d2} with using RandomSample[ ] how I can generate new lists with the same order for both lists. For example : RandomSample[List1] {b1, d1, a1, c1} RandomSample[List2] {b2, d2, a2, c2} Many thanks for your help.

POSTED BY: M.A. Ghorbani

4 Replies

Sort By:

Daniel Lichtblau

Daniel Lichtblau, Wolfram Research

Posted 6 years ago

`RandomSample` can be emulated by creating a random reordering of the integers 1,2,...length(list). Then just use the same reordering on both lists. list1 = {a1, b1, c1, d1}; list2 = {a2, b2, c2, d2}; randOrder = RandomSample[Range[Length[list1]]] list1[[randOrder]] list2[[randOrder]] (* Out[679]= {2, 3, 4, 1} Out[680]= {b1, c1, d1, a1} Out[681]= {b2, c2, d2, a2} *)

RandomSample can be emulated by creating a random reordering of the integers 1,2,...length(list). Then just use the same reordering on both lists.

list1 = {a1, b1, c1, d1};
list2 = {a2, b2, c2, d2};
randOrder = RandomSample[Range[Length[list1]]]
list1[[randOrder]]
list2[[randOrder]]

(* Out[679]= {2, 3, 4, 1}

Out[680]= {b1, c1, d1, a1}

Out[681]= {b2, c2, d2, a2} *)

POSTED BY: Daniel Lichtblau