[R] Interpolation in time

[Gabor Grothendieck]

na.approx(zoo(ta[,-seq(2)], tt))

where tt is as before.


On 10/6/05, Anette Nørgaard <anette at geoplus.dk> 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?
>
> 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)
>
>
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>