Message-ID: <4BBA43DC-39CB-4CCC-9172-E2318459FD77@gmail.com>
Date: 2014-05-06T05:35:01Z
From: Peter Dalgaard
Subject: Historical NA question
In-Reply-To: <53681944.9020606@fhcrc.org>
On 06 May 2014, at 01:05 , Herv? Pag?s <hpages at fhcrc.org> wrote:
>
> BTW, that %in% has precedence over arithmetic operations is surprising,
> error-prone, and doesn't cover any reasonable use case (who needs to
> multiply the logical vector returned by %in% by some value?) but that's
> another story:
The point here is that the %foo% operators all have the _same_ precedence. In principle, they can be user-coded, and there is no way to express what precedence is desirable. It may turn out slightly weird for %in%, but think of what would happen if %*% had lower precedence than addition.
--
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com