Hello everyone, I am new to MATLAB and I am currently plotting a normalised gyroscope data as in the picture below, and I am trying to count the number of the graph trying to go back to zero (on the word, number of the graph descending after reaching each peak).
ANSWER
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To find the troughs, invert the ‘y’ values and use findpeaks: Example: x = linspace(0,250,250); % Create Data
y = 0.25*sin(0.25*pi*x) .* exp(-(x-125).^2./1000) + exp(-(x-125).^2./1000);
[pks,plocs] = findpeaks(y); % Find peaks
[trs,tlocs] = findpeaks(0.1+max(y) - y); % Find troughs
figure(1)
plot(x, y)
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x = linspace(0,250,250); % Create Data y = 0.25*sin(0.25*pi*x) .* exp(-(x-125).^2./1000) + exp(-(x-125).^2./1000); [pks,plocs] = findpeaks(y); % Find peaks [trs,tlocs] = findpeaks(0.1+max(y) - y); % Find troughs figure(1) plot(x, y)
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