maximum points on the surface

On this beautiful plot I need a line that shows the maximum points

https://www.mathworks.com/matlabcentral/answers/uploaded_files/274439/testEffx.xlsx

help me someone

thanks

Answer 1

[darova]

Here is my achievement

X = xlsread('testEffx.xlsx','x');
Y = xlsread('testEffx.xlsx','y');
Z = xlsread('testEffx.xlsx','z');
%%
[zm,im] = max(Z,[],2);                  % find max in each row (columns direction)
ix = sub2ind(size(Z),1:length(im),im'); % convert to index
surf(X,Y,Z)
hold on
plot3(X(im),Y,Z(ix),'.y')
hold off

axis vis3d

[Asliddin Komilov]

thanks, but why its not a stright line? its not so beautiful anymore, please make the line stright.

[darova]

I used this program

[Asliddin Komilov]

don't tell me you draw the line manually...))