[R] Factor to numeric

[Prof Brian Ripley]

The decimal point in R is always '.', never ','.

On Thu, 24 Apr 2008, Jojje Andersson wrote:

>
> Hello!
> I have a problem whith a data.frame. I want to make a subset where some of the variables have values within ceartain limits.
> The variables are proportions like 1,00, 0,54, 0,00 etc.
> I don't get it right as R take the variables for factors.
>
>
>> ekobsub1 <- subset(ekob, PAP>0,25 & PAP<0,6 & CAP>0,1 & CAP<0,6 & FAP>0,1)
> Error in `[.data.frame`(x, r, vars, drop = drop) : object "CAP" not found
> In addition: Warning message:
> In Ops.factor(PAP, 0) : > not meaningful for factors
>
>> ekobn<-as.numeric(as.character(ekob[["PAP"]]))
> Warning message:
> NAs introduced by coercion
>
>
> Thanks!
>
> /Jojje
>
> _________________________________________________________________
> [[elided Hotmail spam]]
>
> px?sc_cmp2=JS_INT_SEMSN_NLPCV
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> 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.
>

-- 
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