peakheights and other not working with array of floats

[lmanzanillas]

Hello,

I'm trying to use this code to find peak position from an array of floats. However I'm getting this error:

If I run the example code with this array x = [0,5,2,3,3,1,4,0]; I do get a result, any idea of what is the problem?

Thanks in advance!

[lmanzanillas]

I have this type of signals: and I'm interested in getting the peak position above a threshold, small peaks are just noise, I understand findmaxima find the local maxima, but it will be great to have as an option a give threshold, i.e. the same function to findmaxima(x, threshold) to find all the peaks above the threshold.

[halleysfifthinc]

Where is your array of floats, vals, coming from/being created? The error message shows that vals is a Vector{Any}, and we can't determine a reasonable minheight (there isn't a logical minimum value for type Any).

Some ways you might be getting a Vector of type Any is if you are creating vals yourself, like vals = []. That syntax creates an array of type Any; the solution in that case would be to add a type like so: vals = Float64[]. Alternately, if vals is created/returned by some function, you should look for type-instabilities that might be causing the array to be promoted to Any. (See docs on type instabilites

Once you have the element type of the array fixed, peakheights or peakproms can definitely remove the unwanted small peaks from your array.

(Unrelated to your error, but your version of Julia is out-of-date, the most recent release was v1.9, several days ago.)

[lmanzanillas]

Indeed, the problem was the Vector{Any}, converting it to Float64 solves the issue