R help - Feb 2006 - translation of the matlab PPVAL function

Hello,

I am trying to translate a matlab program into R, and I have some problems
to find out how to translate the PPVAL function.
I know that ppval(pp,xx) returns the value at the points xx of the
piecewise polynomial contained in pp( constructed by spline), but I don't
know how to do the same thing in R.

Thanks for you help


Delphine

Probably   ?spline  and the builtin  spline() function is
already sufficient for you.

If you need more, use the (standard R) 'splines' package:

library(splines)
library(help = splines)
>>>>> "pecqueur" == pecqueur  <pecqueur at
esbs.u-strasbg.fr>
>>>>>     on Thu, 9 Feb 2006 10:53:45 +0100 (CET) writes:
    pecqueur> Hello,
    pecqueur> I am trying to translate a matlab program into R, and I have
some problems
    pecqueur> to find out how to translate the PPVAL function.
    pecqueur> I know that ppval(pp,xx) returns the value at the points xx of
the
    pecqueur> piecewise polynomial contained in pp( constructed by spline),
but I don't
    pecqueur> know how to do the same thing in R.

    pecqueur> Thanks for you help

    pecqueur> Delphine