Thanks for the help.  I tried out the one promising lead, curfit.free.knot,
and it doesn't work for linear or quadratic splines.  The documentation says
it should, but when I specify a linear spline, it returns a cubic.



On 5/1/08, Spencer Graves <spencer.graves@pdf.com> wrote:
>
>     RSiteSearch('free knot splines', 'fun') produced 5 hits, the first of
> which is curfit.free.knot {DierckxSpline}.
>     RSiteSearch('estimate knots', 'fun') produced 54 hits, but I don't
> know if any of those would help you.
>     Spencer Graves

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