That's great, that will work perfectly.. Thanks All!
-Alex -----Original Message----- From: Gabor Grothendieck [mailto:ggrothendi...@gmail.com] Sent: Monday, April 19, 2010 10:34 AM To: Alex Bryant Cc: r-help@r-project.org Subject: Re: [R] multiple variables pointing to single dataframe? If you only need to retrieve x by referring to x2 and you don`t have to modify x via x2 then this works: > x <- Orange > makeActiveBinding("x2", function() x, .GlobalEnv) > x$age <- 50 > head(x2) Tree age circumference 1 1 50 30 2 1 50 58 3 1 50 87 4 1 50 115 5 1 50 120 6 1 50 142 On Mon, Apr 19, 2010 at 10:15 AM, Alex Bryant <abry...@i-review.com> wrote: > Hi, for example: > >> x <- Orange >> x2 <- x >> x[1,]$age <- 50 >> x2[1,] > Tree age circumference > 1 1 118 30 > > I would like a way for x2 to also reference the modified x data frame without > having to reassign x2<x each time x is modified. > > Thanks, > Alex > > -----Original Message----- > From: Petr PIKAL [mailto:petr.pi...@precheza.cz] > Sent: Monday, April 19, 2010 3:18 AM > To: Alex Bryant > Cc: r-help@r-project.org > Subject: Odp: [R] multiple variables pointing to single dataframe? > > Hi > > r-help-boun...@r-project.org napsal dne 16.04.2010 16:15:40: > >> Hi, I have a need to have 2 variables point to the same dataframe (d1), > I > > What does it mean to point to data frame? Seems to me that it is something > from C+. > > You can reference data frame by $ or by square brackets with as many > variables as you want. > > see > > ?"[" > > regards > Petr > > >> don't want to simply copy the dataframe ( d2<-d1 ) as my understanding > is that >> this will create a second dataframe. Any suggestions on best practice > here? >> >> Thank You, >> >> //************************ >> // Alex Bryant >> // Software Developer >> // Integrated Clinical Systems, Inc. >> // 908-996-7208 >> >> >> ________________________________ >> Confidentiality Note: This e-mail, and any attachment > to...{{dropped:13}} >> >> ______________________________________________ >> 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. > > ______________________________________________ > 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. > ______________________________________________ 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.