[R] R does not subset

[Daniel Nordlund]

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> On Behalf Of Katarzyna Kulma
> Sent: Friday, May 03, 2013 4:21 AM
> To: David Kulp
> Cc: r-help at r-project.org
> Subject: Re: [R] R does not subset
> 
> Jorge, thanks for your suggestions, but they give the same (empty) result:
> 
> > RECinf<-subset(REC2,  INFECTION=="Infected")
> > head(RECinf)
> [1] RINGNO    year      ccFLEDGE  rec2012   binage    INFECTION all.rsLD
> <0 rows> (or 0-length row.names)
> 
> but David's suggestion worked! :
> 
> > RECinf<-REC2[REC2$INFECTION=="Infected ",]
> > head(RECinf)
>     RINGNO  year ccFLEDGE rec2012 binage INFECTION   all.rsLD
> 2  BX23298 Y2003        6       1    juv Infected  -6.1938776
> 4  BT53646 Y2003        5       2     ad Infected  -4.1938776
> 7  BT53248 Y2003        6       1     ad Infected  -2.1938776
> 11 BY75833 Y2004        5       0     ad Infected  -4.6574803
> 13 BX23067 Y2004        6       0     ad Infected  -3.6574803
> 17 BX24240 Y2004        6       0     ad Infected   0.3425197
> 
> 
> still not sure why the subset() function didn't work, though.
> 
> Thanks for your help!
> 
> 
> 

Maybe it didn't work because you still didn't have a space at the end of the value you were comparing (apparently the factor was defined with a space). with).  Try the following (and notice the space at the end of "Infected ". 

RECinf<-subset(REC2,  INFECTION=="Infected ")

David's suggestion worked because you did include a space there.


Dan

Daniel Nordlund
Bothell, WA USA