[R] Quantreg - 'could not find function"rq"'

[Meyners, Michael, LAUSANNE, AppliedMathematics]

Frankly, I have never even heard about this package before and have no
clue what it does, but the error messages nevertheless suggested a
missing call of library. And I didn't bother to check the spelling, my
fault. So I guess you are right... I still didn't check :-) So to the
OP: try 
library(asdf)
with "asdf" replaced by the correct package name, and mind the spelling!

Michael

> -----Original Message-----
> From: David Winsemius [mailto:dwinsemius at comcast.net] 
> Sent: Donnerstag, 7. Januar 2010 14:22
> To: Meyners,Michael,LAUSANNE,AppliedMathematics
> Cc: Gough Lauren; r-help at r-project.org
> Subject: Re: [R] Quantreg - 'could not find function"rq"'
> 
> 
> On Jan 7, 2010, at 8:07 AM, Meyners, Michael, LAUSANNE, 
> AppliedMathematics wrote:
> 
> > Are you sure you called
> > library(Quantreg)
> > before calling any function?
> > M.
> 
> Are you both using a package with the exact spelling 
> "Quantreg"? I would have expected it to be :
> 
> library(quantreg)
> 
> --
> David.
> >
> >> -----Original Message-----
> >> From: r-help-bounces at r-project.org
> >> [mailto:r-help-bounces at r-project.org] On Behalf Of Gough Lauren
> >> Sent: Donnerstag, 7. Januar 2010 13:44
> >> To: r-help at r-project.org
> >> Subject: [R] Quantreg - 'could not find function"rq"'
> >>
> >> Hi all,
> >>
> >>
> >>
> >> I'm having some troubles with the Quantreg package.  I am using R 
> >> version 2.10.0, and have downloaded the most recent version of 
> >> Quantreg
> >> (4.44) and SparseM (0.83 - required package).  However, 
> when I try to 
> >> run an analysis (e.g. fit1<-rq(y~x, tau=0.5)) I get an 
> error message 
> >> saying that the function "rq" could not be found.  I get the same 
> >> message when I try to search for any of the other functions that 
> >> should be in the package (e.g.
> >> help(anova.rq)).
> >>
> >>
> >>
> >> I used this package last year and still have the old 
> versions of both 
> >> quantreg and SparseM saved on my machine.  When I load these older 
> >> packages and attempt an analysis (which, incidentally, worked fine 
> >> last
> >> February) I get the same error messages as I do with the new 
> >> versions.
> >>
> >>
> >>
> >> The only think I have changed since last February is the 
> version of R 
> >> I am using - is there any reason why quantreg wouldn't work in 
> >> version 2.10.0?  I'm not very experienced with R so I'm 
> struggling to 
> >> work out what may be going wrong
> >> - does anyone have any suggestions!?
> >>
> >>
> >>
> >> Many thanks
> >>
> >>
> >>
> >> Lauren
> >>
> >>
> >>
> >> --_______________________________________
> >>
> >>
> >>
> >> Lauren Gough - Postgraduate Research Student University of 
> >> Nottingham, School of Geography,  Nottingham,  NG7 2RD
> >>
> >> Tel: +44 (0)115 8467052
> >> Email: lgxlg1 at nottingham.ac.uk <mailto:lgxkl2 at nottingham.ac.uk>
> >>
> >> P Consider the environment. Please don't print this e-mail 
> unless you 
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> >>
> >>
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> >> ______________________________________________
> >> R-help at r-project.org mailing list
> >> https://stat.ethz.ch/mailman/listinfo/r-help
> >> PLEASE do read the posting guide
> >> http://www.R-project.org/posting-guide.html
> >> and provide commented, minimal, self-contained, reproducible code.
> >>
> >
> > ______________________________________________
> > R-help at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide 
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> 
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
> 
>