Cubic Spline Fit-Just confirm the code

Hi,

I have two vectors, X, and Y (of same size).

Now, I am interested in cubic spline fit of the data points (Y) at certain values (let's call this vector as "x") by the code:

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x = 1:1:125;

y = interp1(X,Y, x,'spline')

plot(x,y,'--r')

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PLEASE CONFIRM:

The "plot (x,y,'--r')" command will give the cubic spline fit for data points (represented in Y), right?

Answer 1

right. You can verify this by

plot(X,Y,,'.',x,y);legend('Samples','Spline')

Thanks John!