sine wave max - min replacement

goodmorning,

in a given sine wave formed in one column, what is the code for replacing i.e the max point with its next one?or with the point defore the max one.

thank you.

[Azzi Abdelmalek]

This is not clear

Answer 1

[Mischa Kim]

Zacharias, use something like

 x = 0:0.1:7;
 y = sin(x);
 y(y==max(y)) = y(circshift(y==max(y),1,2));

Answer 2

[Zacharias]

thanks for your try. i solved it like below: x=input('dose enan arithmo apo to pliktrologio: ') p=primes(x) A=max(p) % o max protos arithmos k=fliplr(p) % o k einai o pinakas p anapoda grammenos z=p+k % o pinakas z einai to athrisma twn pinakvn p kai k m=length(p); % vriskw to mikos tou dianismatos p for j=1:m/2 % vazo m/2 gia na min exo epanalipsi sthn prosthesi tvn pinakwn c=sprintf('%s %d %s %d %s %d ','to athroisma tou ',p(:,j),... 'me to athroisma tou ',k(:,j),'einai to: ',z(:,j)) end

[Zacharias]

i uploaded wrong code.sorry my mistake!!!

Answer 3

[Zacharias]

i have a 960x15 table of sine waves. below is on of my 15 sine waves (one column). i need to find the min and max points of it, and replace them with their next point.then find and show the peak to peak array,and the array of the difference of peak to peak points. after all that, i need to find the mean value of the 'fixed' sine wave and abstract it from this 'fixed' wave. and at the end, i need the code to find the 5 sine waves with the maximum peak to peak difference, show them with 5 figures with 2 sine waves each one. thats all!!

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