How to show peak coordination

How can I show the x ,y coordinate of each peak (dot).

Answer 1

[Monisha Nalluru]

findpeaks() is used to find the local maxima in given data

As an example

x = 1:9;
pp = [50 100 1800 300 2500 1500 3000 3500 5800];
[pks,locs] = findpeaks(pp);

figure
plot(x, pp)
hold on
plot((locs), pks, 'r*') % plot the peaks in red 
hold off