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

[Meyners, Michael, LAUSANNE, AppliedMathematics]

Are you sure you called 
library(Quantreg) 
before calling any function?
M.

> -----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> 
> 
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