Re: [Rd] vector(NA, 3) (PR#1541)

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From: ripley@stats.ox.ac.uk
Date: Sat 11 May 2002 - 16:28:56 EST


Message-id: <200205110628.IAA29669@pubhealth.ku.dk>

On Sat, 11 May 2002 pgilbert@bank-banque-canada.ca wrote:

> I don't seem to be able to initialize a vector of NAs. I hope this is a
> bug and not a new feature (I realize I have not paid much attention to a
> lot of recent discussion about NA):

It's an incorrect use!

>From the help page:

    mode: A character string giving an atomic mode, or `"any"'.

I think you meant rep(NA, 3).

>
> platform sparc-sun-solaris2.6
> arch sparc
> os solaris2.6
> system sparc, solaris2.6
> status
> major 1
> minor 5.0
> year 2002
> month 04
> day 29
> language R
> >
> > vector(NA, 3)
> Error in vector(NA, 3) : vector: cannot make a vector of mode "NA".
> > matrix(NA,2,2)
> [,1] [,2]
> [1,] NA NA
> [2,] NA NA

> Paul Gilbert
>
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-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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