Message-ID: <199901041038.LAA04969@sophie.ethz.ch>
Date: 1999-01-04T10:38:36Z
From: Martin Maechler
Subject: lists -- "vector" etc. [ is.vector(..., "double") ]
In-Reply-To: <199901041026.LAA13634@alpha.luc.ac.be> (message from Jim Lindsey on Mon, 4 Jan 1999 11:26:30 +0100 (MET))
>>>>> "Jim" == Jim Lindsey <jlindsey at alpha.luc.ac.be> writes:
MM> # "numeric"
MM>
MM> typeof(c(23,42)) or storage.mode(c(23,42)) both give "double"
MM>
MM> [which is compatible to S 3 (S+ 3.x, 4.x) but not S 4 (S+ 5.0++)
MM> which now uses integer for integer literals]
MM>
Jim> is.vector(c(23,42),mode="numeric")
MM> FALSE
MM>
MM> This *is* a bug, [and not the only with is.vector/as.vector, see
MM> above].
Jim> That was the point of my message.
MM> However,
MM> > is.vector(c(23,42),mode="numeric")
MM> TRUE
Jim> I don't follow this. That line is identical to mine.
oops, this was my cut-and-paste typo.
I meant
> is.vector(c(23,42),mode="double")
^^^^^^ (not "numeric")
TRUE
-- Martin
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