MATLAB: How to find the equation of a graph after getting Xdata and Ydata

f(x)functionxdataydata

x = [0 1 2 3 4 5 6 7 8 9 10];
y = [4 3 4 7 12 19 28 39 52 67 84];
% How to find the function y = F(x) ??
% because I need for example to know
% if x = 1.5
% y = ??
% the solution should be something regarding regression.

Best Answer

You can find yi by interpolation
x = [0 1 2 3 4 5 6 7 8 9 10];
y = [4 3 4 7 12 19 28 39 52 67 84];
xi= 1.5
yi=interp1(x,y,xi)
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