how to count number of values exceeding given threshold in moving window
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riki ragùa
el 18 de Feb. de 2018
Comentada: riki ragùa
el 18 de Feb. de 2018
I want to calculate # of values exceeding specified threshold (m) with a moving window of length w (so that we omit the 1st sample and add another sample) I have a data of 1500 samples. In matlab r2013 thanx
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Guillaume
el 18 de Feb. de 2018
If I understood correctly:
v = [1 2 3 4 5 6 5 4 3 2 1 2 3 4 5 6]; %demo data
threshold = 4;
windowsize = 5;
abovethreshold = v > threshold;
inwindowabovethreshold = conv(abovethreshold, ones(1, windowsize), 'same')
If you were using R2016a or later, you could use movsum instead of the awkward convolution.
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Image Analyst
el 18 de Feb. de 2018
Same answer I would have given. If it solves your problem, you can "Accept this answer", and vote for it, to thank Guillaume by giving him reputation points.
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