# how to find the closest values with tolerance in a matrix given a specific value

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kostas zervos on 6 Sep 2016
Edited: michio on 6 Sep 2016
Hi everyone, i have a problem finding values with tolerance in a matrix.In more detail, i have a 601x2201 matrix that contains option values, all i want is to find the closest values to 185.2 with +-0.02 tolerance and their indexes in the matrix.i have tried some codes to solve this(ismember,find,...) but always i end up with no answer.i would appriciate any help.Thank you for your time.
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### Accepted Answer

Azzi Abdelmalek on 6 Sep 2016
A=1000*rand(601,2201) ; % Example
tol=0.02
th=185.2
[ii,jj]=find(abs(A-th)<tol)
size(ii)
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kostas zervos on 6 Sep 2016
thanks azzi!!!you saved me!!

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### More Answers (1)

kostas zervos on 6 Sep 2016
Thank you guys,you saved me!!!both answers are very helpful!!!
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michio on 6 Sep 2016
Edited: michio on 6 Sep 2016
If you are using R2015b or later, ismembertol function could also be of help.

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