MATLAB: Convert 3D matrix to 2D matrix.

3d matrix

If i have value of x,y,z plane in 3D matrix and i want to change the 3D to 2D array( of each x plain).

I try to guess from your question:

%random 3D array
A=rand(5,6,7);
%extract a 2D matrix from first dimension of A
x=1; % x can be from 1 to 5 in this example
B=A(x,:,:)

By using reshape function:

A=randi([1 6],1,10); %demo data
reshape(A,2,[])

t = reshape(1:30,5,3,2)

t = nan(5,3,2);
t(:) = 1:30

t = [1;2;3;4;5]+[0,5,10]+reshape([0,15],1,1,[])