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I am skectching from excel importeed data but not getting smooth surfaces.

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RAHUL AGARWAL
RAHUL AGARWAL 2020-8-26
关闭： MATLAB Answer Bot 2021-8-20
clc
data = xlsread('globalrd.xlsx','Sheet6') ;
x = data(:,1) ;
t = data(:,2) ;
u = data(:,3) ;
nx = length(unique(x)) ;
nt = length(unique(t)) ;
X = reshape(x,nx,nt) ;
T = reshape(t,nx,nt) ;
U = reshape(u,nx,nt) ;
surf(T,X,U)
colorbar
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dpb
dpb 2020-8-26
That will be fully dependent upon the granularity/smoothness of the input data. To have a smoother surface will need more data points or to interpolate what you have.

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