want to use output matrix obtained for every iteration of a for loop in another for loop.

Question

J 2024-4-14，20:03

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2106771-want-to-use-output-matrix-obtained-for-every-iteration-of-a-for-loop-in-another-for-loop

评论： J 2024-4-16，4:39

采纳的回答： the cyclist

hi, i am developing a code where i have 2 functions: the first function gives me a smaller matrix 'k'.

i want to obtain this 'k' matrix for every iteration.

then i want to add these smaller matrices into a larger one, for that i am using the second for loop.

can anyone please guide me on how i can save each 'k' matrix after every iteration, and then use the 'k' matrices and add them to a larger matrix 'K'?

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Torsten 2024-4-15，19:37

在 MATLAB Online 中打开

posr = 4;
posc = 3;
m = rand(6);
M = zeros(120);
M(posr:posr+5,posc:posc+5) = m
M = 120x120
         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0    0.5457    0.9695    0.6962    0.8960    0.2307    0.4787         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0    0.4676    0.2877    0.9645    0.1411    0.8091    0.1535         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0    0.7857    0.8168    0.4157    0.1047    0.8180    0.2973         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0    0.4923    0.7581    0.6293    0.9764    0.0582    0.7979         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0    0.1755    0.0105    0.4215    0.0759    0.2622    0.8527         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0    0.5153    0.6940    0.0167    0.7548    0.9984    0.7890         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
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J 2024-4-16，4:39

thank you so much for your help!!

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Answer 1

the cyclist 2024-4-14，22:47

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2106771-want-to-use-output-matrix-obtained-for-every-iteration-of-a-for-loop-in-another-for-loop#answer_1441086

在 MATLAB Online 中打开

Here are two possibilities:

% Save into cell arrays
nsmall = 4;
mcell = cell(nsmall,1);
for k = 1:nsmall
    mcell{k} = rand(3); % Note curly brackets, to save as *contents* of the cell
end
% Save each matrix as a "slice" of a three-dimensional array
nsmall = 4;
m3d = zeros(3,3,nsmall);
for k = 1:nsmall
    m3d(:,:,k) = rand(3); % Saving each slike
end