# random permutation for a matrix

9 visualizaciones (últimos 30 días)
shobhit mehrotra el 15 de Abr. de 2015
Comentada: shobhit mehrotra el 16 de Abr. de 2015
I have a 2x5 matrix, A. I want to randoming sort both of the rows together, so that the second is still a function of the first row.
A = [ 2 5 9 11 23; 4 1 7 9 12]
One random permutation may look like
B= [5 11 9 2 23; 1 9 7 4 12]
The 1st and 2nd row are still the same ratio
Im trying to use the function randperm
Thanks
##### 0 comentariosMostrar -2 comentarios más antiguosOcultar -2 comentarios más antiguos

Iniciar sesión para comentar.

pfb el 15 de Abr. de 2015
That should be easy
i = randperm(5);
should give you the permutated indices, so that
B = A(:,i);
is the permutation of the columns of A according to those new indices.
##### 1 comentarioMostrar -1 comentarios más antiguosOcultar -1 comentarios más antiguos
shobhit mehrotra el 16 de Abr. de 2015
Thanks!

Iniciar sesión para comentar.

### Categorías

Más información sobre Creating and Concatenating Matrices en Help Center y File Exchange.

### Community Treasure Hunt

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

Start Hunting!

Translated by