matlab - to find maximum point from the graph/plot -

a= [1 2 13 20 10 20 12 1 13 14]

b= [1:10:100]

plot(a,b) want find maximum('a') plot , take corresponding point let 'a3,b3' , store else , remove plot. want subtract 'a3' every point left in 'a' , plot graph. , need again till reaches thresh hold point.

this seems odd request if understand correctly.

%input data = [1 2 13 20 10 20 12 1 13 14]; b = [1:10:100];  %some threshold (which didn't specify lengtha = 4;  %initialize storage vector aprime = a; bprime = b;  %while vector while (length(aprime) >= lengtha)     %new figure     figure;      %plot vector     plot(aprime, bprime)      %find index , max value in a'     [amax, index] = max(aprime);      %find max value in b'     bmax = bprime(index);      %remove max value vector , subtract off max value     aprime = aprime([1:index - 1, index + 1:end]) - amax;     bprime = bprime([1:index - 1, index + 1:end]) - bmax; end