Re: [R] Applying interpolation within a convex hull

From: sam.e <>
Date: Tue, 19 Apr 2011 02:23:39 -0700 (PDT)

Thank Rolf,

I am aware of the extrapolation possibilities within the interpolation packages within akima but this interpolation often leads to unrealistic results for my sedimentary units. Therefore I would like to be able to just apply the interpolation to the thickness measurements within the convex hull of the data with the interpolation taking into account that everywhere outside of the convex hull the thickness value is zero rather than increasing again. I would specifically like to apply this to the Tps function as using this function I can apply weights to my data which I can't in the akima fucntions.

Thanks again,

View this message in context:
Sent from the R help mailing list archive at

______________________________________________ mailing list
PLEASE do read the posting guide
and provide commented, minimal, self-contained, reproducible code.
Received on Tue 19 Apr 2011 - 09:27:08 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Tue 19 Apr 2011 - 09:40:31 GMT.

Mailing list information is available at Please read the posting guide before posting to the list.

list of date sections of archive