Factor to numeric
On Thu, 24 Apr 2008, Jojje Andersson wrote:
Hello! ? Thanks! ? I changed the "," to "." in both datafile and code but?the problem remains identical.
Then we will need a reproducible example, as requested in the message footer. BTW, your example is a perfect illustration of the problem. Unless spaces are significant (and they are not in general in R nor in most computer languages) 1,00, 0,54, 0,00 looks just like 1, 00, 0, 54, 0, 00 and R's parser takes it as such.
Cheers! Jojje ?
__________________________________________________________________________________________________ Date: Thu, 24 Apr 2008 09:16:38 +0100 From: ripley at stats.ox.ac.uk To: dietaamigo at hotmail.com CC: r-help at r-project.org Subject: Re: [R] Factor to numeric 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 __________________________________________________________________________________________________ Tokbilliga solresor & gratis reseguider! MSN Resor
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