Cubic Spline interpolation

[econ_g]

This is a very simple question.

I am interpolating annual data using the fetch command, conversion = cubic (c=c)

Is this the equivalent of a cubic spline, and if not, is there an alternative code?

for %a 01 04 06 08 09 10 11 14 15 17 19 20 21 22 23 24 25 26 27
fetch(d="U:\Departments\Economics\Housing\Sales_Stock_Ratio\Data\xxx.edb", c = c) _st_{%a}_00
next

[EViews Gareth]

Yes, it is a cubic spline.