> >
> > R > w <- list(rnorm(10), rnorm(10))
> > R > x <- ts(w, start = 1980)
>
> Even though you don't get an error message this statement is
> erroneous. ?ts discusses the valid possibilities.
So it does, might I suggest add something like this to ts:
if (is.list(data))
stop("Data must be a numeric vector or matrix")
Thanks all for the clarifications and discussion,
Andy
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