Helo all, first of all i would want to say that i am an user.. nor a programmer.( and my first language is not english).
Im actualy using QuantLibXL 1.0.1, and i can use the function 'qlInterpolation' and the other functios that need an object of this kind with no problems. Except when selecting any Method of Interpolation that is related with cubic splines. For example: im success using "Linear" or "LogLinear" but when i tried "MonotonicNaturalCubicSpline"( or leave it in blank because its the default) i get an error(Type mismatch)... the same happens with other cubic spline as "NaturalCubicSpline".
Hope that someone has an answer for this.. because i dont think im doing anything wrong...
Thanks in advance! Cya