[R] Simple numeric "as.is" question

[Prof Brian Ripley]

On Mon, 15 Mar 2004, Andy Bunn wrote:

> Look at the help for:
> ?as.numeric

and make sure you read there that it is the wrong thing (as a column of a
data frame will be a factor).  Better to look this up in the FAQ!

> HTH, Andy
> > -----Original Message-----
> > From: r-help-bounces at stat.math.ethz.ch 
> > [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Janet Gannon
> > Sent: Monday, March 15, 2004 7:04 AM
> > To: r-help at stat.math.ethz.ch
> > Subject: [R] Simple numeric "as.is" question
> > 
> > 
> > I am reading a list of numbers from my clipboard, and have been 
> > successful, except I can't make a histogram as R doesn't recognize my 
> > variable as numeric.  I know I need to use "as.is", but the specifics 
> > escape me. 
> > 
> > I have used x<-read.table("clipboard", header=F) to import from a txt 
> > file.  How do make this numeric?  Thanks, J.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595