On Mar 9, 2011, at 21:57 , Ista Zahn wrote: > Hi Rob, > I'm not sure exactly what state is, but this works: > > > data(state) > > head(state.x77) #or whatever
Actually, you don't even need data(state); state.* are available as lazy-loaded objects. However, if you do, you get copies of the objects in the global environment: > data(state) > ls() [1] "state.abb" "state.area" "state.center" "state.division" [5] "state.name" "state.region" "state.x77" The basic issue is that in the original sources, datasets/data/state.R contains multiple state.foo objects. Without the lazy preloading, data() would look for data/state.* and read it using the appropriate method (for a .R file: executing it). So in particular, there is no state.x77.* but loading state.R creates state.x77. This structure is retained with the preloaded data. Specifically, the .readRDS function returns an object which is a list of character vectors: .... $sleep [1] "sleep" $stackloss [1] "stack.loss" "stack.x" "stackloss" $state [1] "state.abb" "state.area" "state.center" "state.division" [5] "state.name" "state.region" "state.x77" $sunspot.month [1] "sunspot.month" .... and, ..... well, you probably get the point by now. -pd > > Best, > Ista > > > On Wed, Mar 9, 2011 at 3:45 PM, <rb...@atsu.edu> wrote: >> I tried: >>> data(state.x77) >> Warning message: >> In data(state.x77) : data set 'state.x77' not found >> >> data(iris) seems to work fine, but the other state datasets (which I >> haven’t every tried before) don’t seem to be available >> on my windows 7 running R 2.12.2 installation. >> >> ?state brings up the state help page page which suggest the dataset should >> still be there. In help there still seems to be a reference to state.x77, so >> I’m thinking it should be there. When I do data() I find: >> state.x77 (state) >> >> which might suggest it is in a package named even though the heading of the >> menu says datasets in datasets. I see no package named state unless I’m >> missing something. >> >> Anyone know what’s going on? >> >> Thanks, >> >> Rob >> [[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. >> >> > > > > -- > Ista Zahn > Graduate student > University of Rochester > Department of Clinical and Social Psychology > http://yourpsyche.org > > ______________________________________________ > 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. -- Peter Dalgaard Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ 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.
