5 messages · Göran Broström, Gabor Grothendieck
For some reason I want to let one data set in a package be known under two different names. Is that possible, and if so, how? I do not want to have two copies of the data set in the package. Thanks, G?ran
G?ran Brostr?m Department of Statistics Ume? University SE-90187 Ume?, Sweden
2011/4/5 G?ran Brostr?m <gb at stat.umu.se>:
For some reason I want to let one data set in a package be known under two different names. ?Is that possible, and if so, how? I do not want to have two copies of the data set in the package.
This will allow you to read the data frame under a different name but you won't be able to modify it under the different name. We make use of the built in data frame BOD and create the alternate name BOD2:
makeActiveBinding("BOD2", function() BOD, .GlobalEnv)
BOD$Time
[1] 1 2 3 4 5 7
BOD2$Time
[1] 1 2 3 4 5 7
# changing BOD also changes BOD2 BOD$Time[1] <- 99 BOD2$Time
[1] 99 2 3 4 5 7
Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com
5 apr 2011 kl. 18.25 skrev Gabor Grothendieck:
2011/4/5 G?ran Brostr?m <gb at stat.umu.se>:
For some reason I want to let one data set in a package be known under two different names. Is that possible, and if so, how? I do not want to have two copies of the data set in the package.
This will allow you to read the data frame under a different name but you won't be able to modify it under the different name. We make use of the built in data frame BOD and create the alternate name BOD2:
makeActiveBinding("BOD2", function() BOD, .GlobalEnv)
BOD$Time
[1] 1 2 3 4 5 7
BOD2$Time
[1] 1 2 3 4 5 7
# changing BOD also changes BOD2 BOD$Time[1] <- 99 BOD2$Time
[1] 99 2 3 4 5 7
Thanks Gabor, but where do I put this in my package? To clarify, I want
data(B, package = "A")
and
data(C, package = "A")
refer to the same data set. G?ran
-- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com
2011/4/5 G?ran Brostr?m <gb at stat.umu.se>:
5 apr 2011 kl. 18.25 skrev Gabor Grothendieck:
2011/4/5 G?ran Brostr?m <gb at stat.umu.se>:
For some reason I want to let one data set in a package be known under two different names. ?Is that possible, and if so, how? I do not want to have two copies of the data set in the package.
This will allow you to read the data frame under a different name but you won't be able to modify it under the different name. ?We make use of the built in data frame BOD and create the alternate name BOD2:
makeActiveBinding("BOD2", function() BOD, .GlobalEnv)
BOD$Time
[1] 1 2 3 4 5 7
BOD2$Time
[1] 1 2 3 4 5 7
# changing BOD also changes BOD2 BOD$Time[1] <- 99 BOD2$Time
[1] 99 ?2 ?3 ?4 ?5 ?7
Thanks Gabor, but where do I put this in my package? To clarify, I want
data(B, package = "A")
and
data(C, package = "A")
refer to the same data set.
Implement your datasets as .R files. See ?data and the source to the quantreg package, say, as it uses .R files for its data.
Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com
5 apr 2011 kl. 21.01 skrev Gabor Grothendieck:
2011/4/5 G?ran Brostr?m <gb at stat.umu.se>:
5 apr 2011 kl. 18.25 skrev Gabor Grothendieck:
2011/4/5 G?ran Brostr?m <gb at stat.umu.se>:
For some reason I want to let one data set in a package be known under two different names. Is that possible, and if so, how? I do not want to have two copies of the data set in the package.
This will allow you to read the data frame under a different name but you won't be able to modify it under the different name. We make use of the built in data frame BOD and create the alternate name BOD2:
makeActiveBinding("BOD2", function() BOD, .GlobalEnv)
BOD$Time
[1] 1 2 3 4 5 7
BOD2$Time
[1] 1 2 3 4 5 7
# changing BOD also changes BOD2 BOD$Time[1] <- 99 BOD2$Time
[1] 99 2 3 4 5 7
Thanks Gabor, but where do I put this in my package? To clarify, I want
data(B, package = "A")
and
data(C, package = "A")
refer to the same data set.
Implement your datasets as .R files. See ?data and the source to the quantreg package, say, as it uses .R files for its data.
Gabor, thanks again, I got it! Note though that quantreg nowadays uses .rda files for its data. But in an old version I found the way to do it. G?ran
-- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com