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bias
2009 Sep 18
1
what should names(x) be padded with when length(x) is increased?
...39;s to the length of the
main vector: E.g.,
> x<-1:3
> names(x)<-c("One","Two")
> str(x)
Named int [1:3] 1 2 3
- attr(*, "names")= chr [1:3] "One" "Two" NA
I expected this length mismatch to cause an error, but I am
biassed by my long usage of S and S+. Is the extension by
padding with NA what is wanted?
Second, if we extend a named vector with length<- the main
vector is padded with NA's but the names are padded with
empty strings. Should those be NA's?
> x<-1:3
> names(x)<-c("...