How to find peaks of two arrays of same length?

Hi all,

I have a csv file that I opened using csvread and then I set up my arrays as;

Array1 = M(:, 1);

Array2 = M(:, 2);

plot(Array1,Array2)

where M is my csvread. The plot came out nicely but I am trying to find the peaks of this data. I have tried to use the findpeaks and [pks,locs] = findpeaks(data); but it just keeps saying that findpeaks is undefinded.

I'd appreciate any help on this!

Answer 1

[Star Strider]

If you do not have the findpeaks function, you likely do not have the Signal Processing Toolbox.

Run this line in your Command Window (or a script file):

ver signal

If you have the Signal Processing Toolbox, it will tell you.

[Image Analyst]

And of course you wouldn't do

[pks,locs] = findpeaks(data);

you'd do

[pks, locs] = findpeaks(Array2);