Cubic Splines for Interpolation

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Anon
Anon 2018-10-13
回答： Bruno Luong 2018-10-13
Given an array of data T.
I have one missing element which I would like to use interpolation to find.
How do I use cubic splines to interpolate this element?

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回答（3 个）

madhan ravi
madhan ravi 2018-10-13
编辑：madhan ravi 2018-10-13
since you didn't provide any details see csapi and csape
Anon
Anon 2018-10-13
I dont have curve fitting toolbox so csacpi won't work.
if x = [Oct_17(1:30,2)]; y = [1:30];
What code do I used to plot and produce cubic spline ?
Bruno Luong
Bruno Luong 2018-10-13
% fake data
x = sort(rand(1,5))
y = rand(size(x))
xmissing = linspace(0,1,1000); % put here coordinates of pts to be computed
ycomplete = interp1(x,y,xmissing,'spline');
plot(x,y,'or',xmissing,ycomplete,'-')

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