Create a matrix from another matrix

I have a matrix A=[ 5 6 4; 1 2 8; 9 7 11] and two arrays that have the coordinates x,y of every variable of the matrix A.I want to create two matrixes.The first one will have instead the variables of matrix A,the x coordinate and the other one matrix the y.For example the matrix X will have X=[x(5) x(6) x(4); x(1) x(2) x(8); x(9) x(7) x(11)]. Can i do it with one command.At my problems i have much bigger matrixes and i cant write it one by one.

Answer 1

[Titus Edelhofer]

Hi Giannakis,

I guess just by using A as index:

A=[ 5 6 4; 1 2 8; 9 7 11];

x = 1:2:21
x =
   1     3     5     7     9    11    13    15    17    19    21

x(A)
ans =
   9    11     7
   1     3    15
  17    13    21

Titus

[Stephen23]

And reading the appropriate documentation might also help:

http://www.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html

http://www.mathworks.com/help/matlab/math/matrix-indexing.html