How do I get rid of positive or negative values in a cell array?

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Yerzhigit Bapin 2017-7-14

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评论： Anthony Castellano 2018-6-28

How do I create a cell array that consists of only positive or negative values of another cell array in a for loop?

For example, C is a cell 1x24 cell array consisting of 16x7 matrices. First, I need to get rid of the positive numbers in those matrices, second I need to turn the negative values into positives.

I hope I was clear.

Thanks.

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KSSV 2017-7-14

You want to get rid? That means you want to replace them or remove them? If you remove them then you will not get a matrix, the result would be a vector..what you want ?

Yerzhigit Bapin 2017-7-17

I want to replace them with zeros.

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采纳的回答

Jan 2017-7-17

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https://ww2.mathworks.cn/matlabcentral/answers/348733-how-do-i-get-rid-of-positive-or-negative-values-in-a-cell-array#answer_274490

编辑：Jan 2017-7-17

在 MATLAB Online 中打开

for iC = 1:numel(C)
  M        = C{iC};
  M(M > 0) = 0;
  C{iC}    = -M;
end

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Anthony Castellano 2018-6-28

There's no way to do it without that for loop, huh?

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MATLAB Language Fundamentals Matrices and Arrays Creating and Concatenating Matrices

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