R help - Oct 2005 - Problem reading in external data and assigning data.frames within R

Hey there,

    I apologize if this is an irritatingly simple question ... I'm a
new user.  I can't understand why R flips the sign of all data values
when reading in external text files (tab delimited or csv) with the
read.delim or read.csv functions.  The signs of data values also seem
to be flipped after assigning a new data.frame from within R (xnew <--
edit(data.frame()).  What am I doing wrong?

   Any help would be greatly appreciated.  Thanks in advance.

             -- Nate    

-----------------------------
Nathan Dieckmann
Department of Psychology
University of Oregon
Eugene, OR 97403
(541) 346-4963
ndieckma at darkwing.uoregon.edu

Try

xnew <- edit(data.frame())

Ted.


On 04/10/05 16:29,  Nathan Dieckmann wrote,:
>   Hey there,
> 
>     I apologize if this is an irritatingly simple question ... I'm a
> new user.  I can't understand why R flips the sign of all data values
> when reading in external text files (tab delimited or csv) with the
> read.delim or read.csv functions.  The signs of data values also seem
> to be flipped after assigning a new data.frame from within R (xnew <--
> edit(data.frame()).  What am I doing wrong?
> 
>    Any help would be greatly appreciated.  Thanks in advance.
> 
>              -- Nate    
> 
> -----------------------------
> Nathan Dieckmann
> Department of Psychology
> University of Oregon
> Eugene, OR 97403
> (541) 346-4963
> ndieckma at darkwing.uoregon.edu
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html

-- 
Dr E.A. Catchpole
Visiting Fellow
Univ of New South Wales at ADFA, Canberra, Australia
and University of Kent, Canterbury, England
- www.ma.adfa.edu.au/~eac
- fax: +61 2 6268 8786		
- ph:  +61 2 6268 8895

Nathan Dieckmann <ndieckma at uoregon.edu> writes:
>   Hey there,
> 
>     I apologize if this is an irritatingly simple question ... I'm a
> new user.  I can't understand why R flips the sign of all data values
> when reading in external text files (tab delimited or csv) with the
> read.delim or read.csv functions.  The signs of data values also seem
> to be flipped after assigning a new data.frame from within R (xnew <--
If you think the assignment operator is "<--", then that could well
be
the cause....
> edit(data.frame()).  What am I doing wrong?
> 
>    Any help would be greatly appreciated.  Thanks in advance.
> 
>              -- Nate    

-- 
   O__  ---- Peter Dalgaard             ??ster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907

(xnew <-- edit(data.frame()).

is equivalent to:

(xnew <-(- edit(data.frame())).

make sense?
spencer graves

Nathan Dieckmann wrote:
>   Hey there,
> 
>     I apologize if this is an irritatingly simple question ... I'm a
> new user.  I can't understand why R flips the sign of all data values
> when reading in external text files (tab delimited or csv) with the
> read.delim or read.csv functions.  The signs of data values also seem
> to be flipped after assigning a new data.frame from within R (xnew <--
> edit(data.frame()).  What am I doing wrong?
> 
>    Any help would be greatly appreciated.  Thanks in advance.
> 
>              -- Nate    
> 
> -----------------------------
> Nathan Dieckmann
> Department of Psychology
> University of Oregon
> Eugene, OR 97403
> (541) 346-4963
> ndieckma at darkwing.uoregon.edu
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
-- 
Spencer Graves, PhD
Senior Development Engineer
PDF Solutions, Inc.
333 West San Carlos Street Suite 700
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spencer.graves at pdf.com
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