Matlab Matrix Initialization

[akaballa]

Hi,

I am a newbie in matlab. I am trying to initialize an empty matrix with certain dimensions.

X = 1:5;
    Y = 1:1;
    [X, Y] = ndgrid(x, y);
    tabuList = [X,Y];
    for i = 1:5
        tabuList(i,1) = 'EMPTY';
    end

However, I get the following error

??? Undefined function or variable 'x'.

I m not sure why it is not recognizing x and y. Can some let me know of the proper initialization technique.

 

[braddles90]

In the third line, it should be:

[X, Y] = ndgrid(X, Y);

I think the problem is that MATLAB is looking for the variable 'x', whereas you've initiated 'X' (remember MATLAB is case sensitive).

 

[SomptingGuy]

Kinda odd really. ML started its life as a wrapper around some very old FORTRAN functions, yet its founders decided to be case sensitive.

- Steve

 

[FeX32]

One line:

ndgrid=zeros(m,n);

% here m, and n are the dimensions of the empty matrix directly


Fe

 

[akaballa]

Oh ok, i get it! Thanks a lot guys!