Problem with function output Problem with function output

I have this function that gives me as result a vector that has NaN element while i expect numerical values what i did wrong?

the input should be with different dimension

x= vector

n=number

function WCoeff = Coeff(x,n)
M=[1 2 3 4 5 6 7 8 9 10 11 12];
y=linspace(x(1),x(end),n*(numel(x)-1)+1); 
WCoeff=interp1(M,x,y);
end

Answer 1

[Torsten]

y must be a vector with element between min M and max M.

This doesn't seem to be true in your case since you generate y in between min x and max x, I guess.