$ INFECTION: Factor w/ 2 levels "Infected ","Uninfected ": 2 1 2 1 2 2 1 2
it is a factor variable, so it takes numeric values, for "Infected " it is assigned value 1. subset(REC2, INFECTION==1) 2013/5/3 Jorge I Velez <jorgeivanve...@gmail.com> > Hi Kasia, > > You need > > subset(REC2, INFECTION=="Infected ") > > (note the space after "Infected"). > > HTH, > Jorge.- > > > On Fri, May 3, 2013 at 7:48 PM, Katarzyna Kulma > <katarzyna.ku...@gmail.com>wrote: > > > Hi everyone, > > > > I know there have been several requests regarding subsetting before, but > > none of them really helps with my problem: > > > > I'm trying to subset only infected individuals from the REC2 data.frame: > > > > > str(REC2) > > 'data.frame': 362 obs. of 7 variables: > > $ RINGNO : Factor w/ 370 levels "BL17546","BL17577",..: 78 81 67 41 58 > > 66 17 > > $ year : Factor w/ 8 levels "Y2002","Y2003",..: 1 2 1 2 1 1 2 1 1 3 > > ... > > $ ccFLEDGE : int 6 6 6 5 6 7 6 7 6 5 ... > > $ rec2012 : int 2 1 2 2 1 2 1 1 1 0 ... > > $ binage : Factor w/ 2 levels "ad","juv": 1 2 1 1 1 1 1 1 1 1 ... > > $ INFECTION: Factor w/ 2 levels "Infected ","Uninfected ": 2 1 2 1 2 2 > 1 2 > > 2 1 ... > > $ all.rsLD : num -4.62 -6.19 -3.62 -4.19 -2.62 ... > > > > using either > > > > RECinf<-REC2[which (REC2$INFECTION=="Infected"),] > > > > or > > > > RECinf<-subset(REC2, INFECTION=="Infected") > > > > in both cases I get empty data frame (0 observations): > > > > > str(RECinf) > > 'data.frame': 0 obs. of 7 variables: > > $ RINGNO : Factor w/ 370 levels "BL17546","BL17577",..: > > $ year : Factor w/ 8 levels "Y2002","Y2003",..: > > $ ccFLEDGE : int > > $ rec2012 : int > > $ binage : Factor w/ 2 levels "ad","juv": > > $ INFECTION: Factor w/ 2 levels "Infected ","Uninfected ": > > $ all.rsLD : num > > > > When subsetting, R doesn't return any warning or error message. Besides, > I > > used same codes many times before and they worked perfectly well. Any > ideas > > why this case is different? > > > > Thanks for your help, > > Kasia > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@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. > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@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. > -- Luis Iván Ortiz Valencia Doutorando Saúde Pública - Epidemiologia, IESC, UFRJ Estatístico Msc. Spatial Analyst Msc. [[alternative HTML version deleted]]
______________________________________________ R-help@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.
