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

[David Winsemius]

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>
>>
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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.

David Winsemius, MD
Heritage Laboratories
West Hartford, CT