Peak to Peak Distance Help
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So I have a large data set of monthly averages which came in as a vector of 5000 or so points. I converted into 12x235 a matrix and then averaged each column to give me a vector of yearly averages for the data. The data resembles a sin curve and I need to find the distance between each peak. When I tried to use the peak to peak function, [pks,locs]=findpeaks(data,'minpeakdistance',3), it told me it could not compute it for type double. I tried converting to int and no luck. Please help.
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Image Analyst
on 23 Jan 2013
Are you sure it says it "could not compute it for type double", or does it really say "
Error using findpeaks (line 43)
Input arguments must be 'double'.
"? Because that's the complete opposite of what you said.
Answers (2)
Greg Dionne
on 6 Feb 2014
It looks like you don't have the Signal Processing Toolbox.
You get that error when you try accessing a function that doesn't exist.
Try:
>> [pks,locs]=completelyundefinedfunction(x,'minpeakdistance',3) Undefined function 'completelyundefinedfunction' for input arguments of type 'double'.
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