[R] [<- and indexing for zoo objects

[Achim Zeileis]

Tobias,

thanks for the report:

> > a[I(2003), 2] <- NA
> Error: subscript out of bounds

Yes, we would have to write a [<-.zoo method for that, currently we
rely on the corresponding methods for matrices and vectors. I'll add it
to the WISHLIST and try to add this functionality for the next zoo
release.

All the indexing can also be done via window<-

window(a, start = 2003, end = 2003)[,2] <- NA

which would currently be the preferred solution.

thx,
Z