fitting spline on data and getting equation
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i have a table with 3 variables(B/H)= 1,2,3,4,5,6,7,8 and fi= 0,10,20,30 and h which is depend on (B/H) and fi that contains 32 values. for example for fi=0 and (B/H)=1 >>h=1 fi=0 and (B/H)=2 >>h=1.02 ...... fi=30 and (B/H)=8 >>h=14800
h:[ 1 1.02 1.11 1.21 1.3 1.4 1.59 1.78
1 1.11 1.35 1.62 1.95 2.33 3.34 4.77
1.01 1.39 2.12 3.29 5.17 8.29 22 61
1.13 2.5 6.36 17.5 50 150 1400 14800]
>>>>is there any way in MATLAB to fit spline on data and get equation for h in terms of (B/H) and fi??and how could we make sure that spline is a good fit for our data???
2 Comments
Andrei Bobrov
on 13 Jul 2011
Hi milad!
it does not suit?
<http://www.mathworks.com/matlabcentral/answers/10582-deriving-surface-equation-form-data-on-a-table>
Answers (1)
Bjorn Gustavsson
on 13 Jul 2011
If you have the spline toolbox you should take a look at spas2, spaps and csasp.
HTH,
4 Comments
deb.P
on 8 Nov 2019
i have the same question, that i have fitted a curve to my 3 variable data set. Now i want to know what is the equation of the fitted curve.
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