[R] Problem with recode -Error in parse(text = range[[1]][1]) : unexpected end of input in " c(0"

[John Fox]

Dear David,

Thank you for addressing this question, but I answered Simon's question in
an email I sent to the R help list a while ago: You can't mix : and c() in a
recode specification; : isn't the sequence operator in a recode
specification but rather represents a continuous range of values. Thus,
something like 0:49.99=1 is perfectly line, but c(0:49.99)=1 isn't.

Regards,
 John


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On
> Behalf Of David Winsemius
> Sent: April-14-10 8:45 AM
> To: Simon Kiss
> Cc: r-help at r-project.org
> Subject: Re: [R] Problem with recode -Error in parse(text = range[[1]][1])
:
> unexpected end of input in " c(0"
> 
> 
> On Apr 14, 2010, at 2:56 AM, Simon Kiss wrote:
> 
> > Dear colleagues,
> > in the help archive there was a previous person who encountered a
> > problem with the "recode" command in the car library. I'm not sure
> > if that was solved, there was no posting to that effect, but I'm
> > having the same problem.
> >
> > I'm trying to recode a numeric variable with values from 0-100 into
> > a binary variable with values (0,1).
> >
> > The following command:
> >
> > recode(green_2004_2$french, "c(50:100)=0; c(0:49.99)=1")
> 
> Look at the last example in the recode help page:
> recode(x, "1:2='A'; 3='B'")
> ## [1] "A" "A" "B" "A" "A" "B" "A" "A" "B"
> It appears to me that the c() function around your sequences may be
> part of the problem and I further wondered whether 0:49.99 can
> succeed. Generally the ":" operator expects integer arguments, but the
> help page is not clear in this area and it appears that recode has a
> different interpretation.
>  > require(car)
>  > recode(x, "-Inf:0=-1; 0.000001:Inf=1") # succeeds


> --
> David
> 
> >
> > gets the following error message
> >
> > Error in parse(text = range[[1]][1]) : unexpected end of input in "
> > c(0"
> >
> > I tried it with a second numerical variable in the same data set,
> > but get precisely the same error at precisely the same location in
> > the command, i.e. the second colon.
> > As far as I can tell I have the most up-to-date version of car
> > installed.
> > Any suggestions?
> > Yours, Simon Kiss
> >
> > *********************************
> > Simon J. Kiss, PhD
> > SSHRC and DAAD Post-Doctoral Fellow
> > John F. Kennedy Institute of North America Studies
> > Free University of Berlin
> > Lansstraße 7-9
> > 14195 Berlin, Germany
> > Cell: +49 (0)1525-300-2812,
> > Web: http://www.jfki.fu-berlin.de/index.html
> >
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> > PLEASE do read the posting guide http://www.R-project.org/posting-
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