Hi Steve,

Check the "splint" function in the "fields" package.

HTH,
Jorge.-


On Sat, Dec 1, 2012 at 11:09 PM, Steve Stephenson <> wrote:

> Hallo,
> I'm facing a problem and I would really appreciate your support.
> I have to translate some Matalb code in R that I don't know very well but I
> would like to.
> I have to interpolate 5 point with a cubic spline function and then I
> expect
> my function returns the Y value as output a specific X value inside the
> evaluation range.  Let's suppose that:
>   1-  *X = [-10, -5, 0, 5, 10]*
>   2 - *Y = [12, 10, 8, 7, 6]*
>   3 - *I have to interpolate with a cubic spline assuming x=11*
>
> In Matlab I used this function:
>
> *y = interp1(X, Y, x, "cubic"); *
>
> How can I do the same in R?
> Many thanks in advance for your reply and support!
> Kindly
>
> Steve
>
>
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/cubic-spline-tp4651537.html
> Sent from the R help mailing list archive at Nabble.com.
>
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