Subject: RE: Is a ts of length one a ts? (PR#245)
From: Martyn Plummer (email@example.com)
Date: Wed 11 Aug 1999 - 17:23:38 EST
On 10-Aug-99 firstname.lastname@example.org wrote:
> Is there any good reason why a time series of length one is not
> allowed by [.ts (you can certainly create one with ts)?
It certainly has a start and an end value, but what's the
frequency? If you want the tsp attribute of a time series
to be well defined, then maybe you should disallow series
of length 1.
"[.ts" certainly needs fixing. There has been some discussion
about this and I think the consensus was that "[.ts" should
not attempt to return a time series when taking row subsets
(computationally expensive, and quite difficult to cover
all cases, see PR#216, PR#217). The window() function is more
appropriate for taking subseries IMHO.
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