as i said in topic name, i want to put variables of 3 arrays in a row of another array.
look: for example i have 3 arrays X1, X2, X3 that them variables are:
X1=[1 2 3];
X2=[4 5 6];
X3=[7 8 9];
and another array Y is this look:
Y=zeros(3,3);
0 0 0
0 0 0
0 0 0
now i want randomize X1 in first row, X2 in second row and X3 in third row like this:
3 1 2
4 6 5
9 8 7
many thanx :)
This is easier to do if your Xi row vectors are in a single array X.
EDIT: Thanks to LuisMendo for the optimization suggestion.
X = [X1;X2;X3];
[rows,cols] = size(X);
Y = zeros(rows,cols);
for i = 1:rows
Y(i,randperm(cols)) = X(i,:);
end
Y(i,:) = x(randperm(size(X,2))) or Y(i,randperm(size(X,2))) = x
X1, one element from X2, and one element from X3, and find all possible combinations?Use randperm:
n = size(Y,2); %// number of columns
Y(1, randperm(n)) = X1;
Y(2, randperm(n)) = X2;
Y(3, randperm(n)) = X3;
size(Y,2) is the number of columns of Y (more info about size function here). randperm(n) is a random permutation of the numbers 1, 2 , ..., n. See the link in my answer for more details about randperm.