How to filter out single/double zero's ?
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A = [1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0]
I have vector A and I want to smoothen the vector by changing the single 0's or double 0's to 1's. This means that I want to keep the consecutive zero's when bigger than 2 consecutive.
Is there an easy way to do this without using a for loop?
Thanks
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Fabio Freschi
il 23 Set 2019
% find indices
idx1 = strfind([0 A == 0 0],[0 1 0]);
idx2 = strfind([0 A == 0 0],[0 1 1 0]);
% replace
A(idx1) = 1;
A([idx2(:); idx2(:)+1]) = 1;
1 Commento
Guillaume
il 23 Set 2019
Note that, while this is a good solution, this usage of strfind with numeric arrays is undocumented. I have suggested to Mathworks to make it documented (or make a function that does the same for numeric vectors), but for now, use at your own perils. It may stop working in future versions.
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