How to use findpeaks in a while loop?

I want to create a while loop that will increase the threshold value from 0 until a certain amount of peaks is reached using findpeaks. How do I go about doing this? I’ve tried doing it myself, but I keep getting errors.

Answer 1

[Image Analyst]

Try this

allThresholds = linspace(0, max(signal), 1000);
for k = 1 : length(allThresholds)
    thisThreshold = allThresholds(k);
    fprintf('Trying a threshold of %.3f.', thisThreshold);
    [peakValue, indexesOfPeakValues] = findpeaks(signal, 'threshold', thisThreshold);
    numPeaks = numel(peakValue);
    fprintf('    It has %d peaks.\n', numPeaks);
    if numPeaks == desiredNumberOfPeaks
        break;
    end
end

Adapt as needed.