How to find a peak in data?

Hello My name is Anthony, I am a high school student working on a software to analyze solar flare data and autonomously find there peaks. My friend told me that I can take the derivative of each data point and see where it is undefined. Does any one know how to do this i have tried diff()?

Answer 1

[Andrei Bobrov]

try this is

or

data = randi(179,30,1);% eg your data

d1 = [true;diff(data)>0]
out = data(strfind(d1(:).',[1,0]))

[anthony]

Thanks I will