Sacar N submatrices de una matriz

Hola

Tengo una matriz de N columnas, por 4 filas, esas N columnas son multiplos de 200, yo quiero sacar las N submatrices, cada 200, es decir si tengo 1000 columnas sacar las columnas 1,201,401,601,801, y esta ser una submatriz, asimismo para las columnas 2,202,402,602,802... y asi hasta 200,400,600,800,1000.

Alguna idea?

Muchas gracias

Answer 1

[Sriram Tadavarty]

HI Isabel,

You wanted to have submatrices which are having columns spread by 200 each. This can be done with a for loop as such:

x = randi([0 100],4,1000); % Arandom matrix of size 4 x 1000

tmp = cell(1,200);
for i = 1:200
    tmp{i} = x(:,i:200:end);
end

% Each cell of tmp contains a submatrix which are the columns spread by 200
% each
% For example submatrix 2 can be known with tmp{2}

Hope this helps.

Please do post your upcoming questions in english to reach out wider audience.

Thanking you.

Regards,

Sriram

[Isabel Aldana Benavides]

Thanks so much!