Writing inside cell array

Question

Matteo Tesori 2023-5-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1966379-writing-inside-cell-array

回答： Sulaymon Eshkabilov 2023-5-17

Let "f" be a function that returns a 3 by 1 cell. I have to evaluate "f" multiple times, say "N", and I would like to store the results in just one 3 by 2 cell "y".

My solution is the following and is based on a temporary 3 by 1 cell "ytemp". Is there a way to obtain the same result without involving "ytemp"?

y = cell(3, N);
for i = 1 : N
    ytemp   = f(i);
    y(:, i) = ytemp(:);
end

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Answer 1

Jon 2023-5-17

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链接

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https://ww2.mathworks.cn/matlabcentral/answers/1966379-writing-inside-cell-array#answer_1238039

在 MATLAB Online 中打开

Is this what you are asking for?

y = cell(3, N);
for i = 1 : N
    y(:, i) = f(i);
end

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Matteo Tesori 2023-5-17

yes thank you! works like a charm!

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Answer 2

Sulaymon Eshkabilov 2023-5-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1966379-writing-inside-cell-array#answer_1238099

在 MATLAB Online 中打开

If understood correctly your question, here is how it can be solved:

t = randn(1);
g = sin(2*pi*t);
f = repmat(g, 1,100)+rand(size(t));
N = 100;
y = cell(1,N);
for i = 1 : N
    y{1,i} = f(i);
end
y
y = 1×100 cell array
  Columns 1 through 13

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}

  Columns 14 through 26

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}

  Columns 27 through 39

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}

  Columns 40 through 52

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}

  Columns 53 through 65

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}

  Columns 66 through 78

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}

  Columns 79 through 91

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}

  Columns 92 through 100

    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}    {[-0.6299]}