-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear R-Users! I am trying to fit a spline to a time-series with about 90 values. I would like to specify about four to five knots and I would like the values returned to be similar in fashion to the output of interpSpline - I would only like the spline to be constructed not with every point of data as a knot, but with significantly less knots. - From the plenty of packages available concerning splines, I have not understood how to extract the piecewise polynomial \textit{functions} instead of the fitted values, as I would like to integrate these and therefor need to be able to construct a class polynomial. Thank you very much for your help, have a nice evening Christopher J. Ruwe -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHOg+rEnhHZG9ORx4RAla1AJ0XdjFg5DPXkJ0LGkjUVxNqLfT5KgCaAj5A +OJKipjVUMG1EI/7g0Z6AoM=a4bq -----END PGP SIGNATURE-----