Hi all members of Google groups
  I have a small question like this. I have a 2-Dimensional matrix. And
I need a method to manipulate a 2-D matrix such that the row order can
be in random arrangements.

Hoang Trong Minh Tuan skrev:
> Hi all members of Google groups
>   I have a small question like this. I have a 2-Dimensional matrix. And
> I need a method to manipulate a 2-D matrix such that the row order can
> be in random arrangements.

First we create a test matrix:

X = magic(5)

of size:

[numRows, numCols] = size(X);

The goal is to randomly shuffle the rows of this matrix. For this we
can use the randperm function which creates a random permutation of
integers from 1 to its input argument n

indices = randperm(numRows);

So the shuffeled matrix is obtained as:

Y = X(indices, :)

Hoang Trong Minh Tuan wrote:
>
>
> Hi all members of Google groups
> I have a small question like this. I have a 2-Dimensional matrix.
> And
> I need a method to manipulate a 2-D matrix such that the row order
> can
> be in random arrangements.
>
>

Look for SHAKE or RANDSWAP on the File Exchange.

hth
Jos