How can i find value tends to zero. means value near by zero.

Question

Triveni 2016-2-1

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https://ww2.mathworks.cn/matlabcentral/answers/266036-how-can-i-find-value-tends-to-zero-means-value-near-by-zero

编辑： Triveni 2016-2-28

 l(:,:,1) =
   -0.2881
 l(:,:,2) =
   -0.2823
 l(:,:,3) =
   -0.2775
 l(:,:,4) =
   -0.2767
 l (:,:,5) =
   0.2733
 l(:,:,6) =
   -0.3245

I want value near by zero, with Layer No L. example for maximum value

[maxV, L] = max(l);

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Answer 1

Walter Roberson 2016-2-1

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https://ww2.mathworks.cn/matlabcentral/answers/266036-how-can-i-find-value-tends-to-zero-means-value-near-by-zero#answer_208076

在 MATLAB Online 中打开

[maxV, L] = max(l, [], 3);

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Triveni 2016-2-1

编辑：Triveni 2016-2-28

在 MATLAB Online 中打开

If my value(s) between +2 to -2. then how can i find nearest value from zero?..

[maxV, L] = max(l)

gives me same result.

 l(:,:,1) =
    0.5000
 l(:,:,2) =
     1
 l(:,:,3) =
     4
 l(:,:,4) =
   -10
 l(:,:,5) =
     2
 l(:,:,6) =
   -0.9000
 l(:,:,7) =
   -0.5000

I need nearest value from zero. values may be in positive or negative.

Walter Roberson 2016-2-1

You can find the indices by looking at min(abs(l),[],3) and then to get the corresponding values you can index the original matrix at those locations. Someone had a trick for doing that with the layers, but I do not recall what it is at the moment; I usually code the equivalent of sub2ind()

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