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Creating 3-D surface and contour plot from csv

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I am trying to create surface from given xlsx file and should be looks similar to this and contour looks like this

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KALYAN ACHARJYA
KALYAN ACHARJYA on 10 Feb 2021
Edited: KALYAN ACHARJYA on 10 Feb 2021
Please refer the MATLAB docs
data=readmatrix('180.xlsx');
figure,surf(data);
% Here matrix elements represent the heights (z direction)
See the contour function here

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