# Finding Max value on peak point of graph (logistics growth model)

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Is there a method in matlab where i can find the value of the point in the graph (red arrow) before it plateues. I was thinking of using the gradient function. But unable to get any. Some help please ! ##### 2 CommentsShowHide 1 older comment
Thank you sir. I have attached below and what is it that im trying to find.

Ananya Tewari on 30 Mar 2021
I understand you want the coordinates of the point after which the graph plateaus. Assuming you are having the data points of the graph, using movmax we can get the desired result.
maxi = movmax(data,[0 2]); % Taking 3 values at a time and finding maximum of them
idx = 0; % this will capture the index after which the graph plateaus
for k = 1:n % where n is number of data points
% when the middle value of the 3 elements is the largest we break the loop
if(maxi(k) == data(k+1))
idx = k;
break;
end
end
Dear Ananya,
Thank you very much for your assistance on this. Appreciate it a lot!