Save a matrix into text files with different names

I have a big matrix. I am wondering how to separate it into different columns and save each column into a text file with a specified name? For example, if A=[1 2 3; 4 5 6; 7 8 9]

the result should be as X_1=[1;4;7], X_2=[2;5;8] and X_3=[3;6;8]

Thanks in advance

Answer 1

[Nihar Deodhar]

The following illustration might help:

A=[1 2 3; 4 5 6; 7 8 9];

for i = 1:size(A,2)

    X_i = A(:,i);

    filename = sprintf('X_%d.txt', i);

    save(filename,'X_i','-ascii')

end