# Find Average Peaks Function

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Nathan Johnson le 22 Sep 2023
I'm trying to find the average peaks from a code script I made. I currently am using the "findpeaks" function with a minimum y-axis value necessary. Example is
[pksR1,LcsR1]=findpeaks(filt_RLE,"MinPeakHeight",55);
What function can I call to get the mean bewteen the peaks within the code.
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Dyuman Joshi le 22 Sep 2023
"What function can I call to get the mean bewteen the peaks within the code."
You want to find the mean of all the peaks you obtained?

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### Réponses (1)

Star Strider le 22 Sep 2023
The mean value of the function between any two peaks would be —
x = linspace(0, 10, 250).';
filt_RLE = 50 * sin(2*pi*x*1.5) .* cos(2*pi*x/10) + 30;
[pksR1,LcsR1]=findpeaks(filt_RLE,"MinPeakHeight",55);
LcsR1 = LcsR1.';
for k = 1:numel(LcsR1)-1
meanv(k,:) = mean(filt_RLE(LcsR1(k) : LcsR1(k+1)));
end
figure
plot(x, filt_RLE)
hold on
plot(x(LcsR1), filt_RLE(LcsR1), 'r^')
hold off
yline(55, '--k')
Results = table(x(LcsR1(1:end-1)), x(LcsR1(2:end)),meanv, 'VariableNames',{'Peak Start','PeakEnd','Mean'})
Results = 9×3 table
Peak Start PeakEnd Mean __________ _______ ______ 0.16064 0.84337 33.377 0.84337 1.4859 30.741 1.4859 3.8554 31.279 3.8554 4.498 30.966 4.498 5.1807 33.565 5.1807 5.8233 30.875 5.8233 6.506 32.694 6.506 8.8353 30.744 8.8353 9.5181 33.229
.
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