5 apr 2011 kl. 18.25 skrev Gabor Grothendieck:
> 2011/4/5 Göran Broström <g...@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.
Göran
>
> --
> Statistics & Software Consulting
> GKX Group, GKX Associates Inc.
> tel: 1-877-GKX-GROUP
> email: ggrothendieck at gmail.com
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
