Infinite loop in a interpl?

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Isktaine
Isktaine 2012-9-13
Hi,
While solving an ode with ode45 I use a spline like this:
X_0 = interp1(r(:,1),r(:,2),x,'spline');
However sometimes the spline appears to get into an infinite loop where ode45 will not output any answers and if I cancel the program it always stops while in this line of code, usually in 'spparms'.
spparms at 116
In ==> spline at 90
spparms('autommd',0);
In ==> interp1 at 280
yiMat = spline(xCol.',yMat.',xiCol.').';
Any ideas in to what is going wrong? Will the spline function 'interp1' get stuck in a loop if the fit is too bad?

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