[R] Interpolation in time

[Achim Zeileis]

On Thu, 6 Oct 2005 16:10:15 +0200 Anette Nørgaard wrote:

> This is exactly what I requested, thank you!! However I do actually
> have several columns in my data sheet where I need to do the same
> thing, then how do I come about that?

Look at na.approx() in package zoo.
Best,
Z
  
> e.g.
>  
> yr<-c(rep(2000,14))
> doy<-c(16:29)
> dat1<-c(3.2,NA,NA,NA,NA,NA,NA,5.1,NA,NA,NA,NA,NA,4.6)
> dat2<-c(2.2,NA,NA,NA,NA,NA,NA,6.1,NA,NA,NA,NA,NA,4.2)
> dat3<-c(3.4,NA,NA,NA,NA,NA,NA,4.1,NA,NA,NA,NA,NA,4.7)
> ta<-cbind(yr,doy,dat1,dat2,dat3)
>  
>  
> 
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