How does a matrix sort based on another matrix?

I have two matries such as
A=[2 3 1;2 1 3] and B=[0.2 0.15 0.1; 0.3 0.2 0.1]. Now I want to create a matrix which looks like C=[ 0.1 0.2 0.15; 0.2 0.3 0.1]. What actually happened here is that
B(1,1) moves to C(1,2) because of A(1,1)=2 .
B(1,2) moves to C(1,3) because of A(1,2)=3;
B(1,3) moves to C(1,1) beacause of A(1,3)=1;
B(2,1) moves to C(2,2) beacause of A(1,1)=2;
B(2,2) moves to C(2,1) beacause of A(1,2)=1;
B(2,3) moves to C(2,3) beacause of A(1,3)=3;
I used just C=B(A)..it does not make sense for me! Is there any possible solution without loop?

 Respuesta aceptada

JESUS DAVID ARIZA ROYETH
JESUS DAVID ARIZA ROYETH el 12 de Feb. de 2020
Editada: JESUS DAVID ARIZA ROYETH el 12 de Feb. de 2020
Solution:
C=zeros(size(B));
C(sub2ind(size(B),repmat((1:size(B,1))',1,size(B,2)),A))=B

2 comentarios

SM
SM el 12 de Feb. de 2020
The matrix size varies with my problem size...So, n*m should adjust automatically!
try now!

Iniciar sesión para comentar.

Más respuestas (0)

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by