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)
 
 

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