# Determining the distance between the peaks

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Lev Mihailov el 9 de Jul. de 2019
Respondida: Roy Kadesh el 9 de Jul. de 2019
Hello! I have a matrix, where for each column I have to determine the length of the peak. The problem is that the matrix is ​​large and you need to start with a specific row in this column. Help me the best way to do this.Peak = + 10 or -10 from the previous value
for Vatl(i)+en>en;
% en is how much to add to each value
% Vatl is the value to start counting
MaxPeak1=VatlPoint(Vatl(i)-en:Vatl(i));
MaxPeak2=VatlPoint(Vatl(i):end);
[pks1,locs1] = findpeaks(MaxPeak1,-10:10,'MinPeakDistance');
[pks2,locs2] = findpeaks(MaxPeak2,-10:10,'MinPeakDistance');
end
Why is this option not working
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### Respuestas (1)

Roy Kadesh el 9 de Jul. de 2019
In the documentation you can find the correct syntax. You need to provide the Name argument first and then the Value argument:
[pks1,locs1] = findpeaks(MaxPeak1,'MinPeakDistance',10);
Note that the 10 here is in units of samples.
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