dplyr internally converts all `data.frame` objects to its `tbl_df` class and most dplyr methods operate on the `tbl` superclass, see ( https://github.com/hadley/dplyr/blob/master/R/tbl-df.r, https://github.com/hadley/dplyr/blob/master/R/tbl.r).
The most direct route would to getting DataFrame objects working be just to just provide a method that converts the `DataFrame` objects to `data.frame`, then call `tbl_df()` on that. However this would copy the data multiple times, so probably the best option would be to create a new `tbl_DF` class to handle `DataFrame` objects directly. You can look in the various tbl-*.r files at ( https://github.com/hadley/dplyr/blob/master/R/) to see what methods should be implemented. On Fri, Apr 24, 2015 at 10:16 AM, Michael Lawrence < lawrence.mich...@gene.com> wrote: > Sure, but the way DataFrame is flexible is by relying on two abstractions > in base R. Just length() and '['. If dplyr does the same thing, which seems > totally reasonable, everything should work the same. > > On Thu, Apr 23, 2015 at 4:32 PM, Vincent Carey <st...@channing.harvard.edu > > > wrote: > > > Seems to me that DataFrame is too flexible -- you can have very complex > > objects in the columns (anything that inherits from Vector) with which, > in > > its current state, dplyr would not work too naturally. You would wind up > > doing a fair amount of coercion of such entities, so it seems to me that > > arranging a coercion of DataFrames satisfying specific conditions to > > data.frame would be a path of low resistance. > > > > Ready to be corrected of course. > > > > > > On Thu, Apr 23, 2015 at 7:06 PM, Ryan C. Thompson <r...@thompsonclan.org> > > wrote: > > > > > Hi all, > > > > > > So, dplyr is a pretty cool thing, but it currently works with > data.frame > > > and data.table, but not S4Vectors::DataFrame. I'd like to change that > if > > > possible, and I assume that this would "simply" involve writing some > glue > > > code. However, I'm not really sure where to start, and I expect things > > > might be complicated because dplyr uses S3 and S4Vectors uses S4. Can > > > anyone offer any pointers? > > > > > > -Ryan > > > > > > _______________________________________________ > > > Bioc-devel@r-project.org mailing list > > > https://stat.ethz.ch/mailman/listinfo/bioc-devel > > > > > > > [[alternative HTML version deleted]] > > > > _______________________________________________ > > Bioc-devel@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/bioc-devel > > > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioc-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/bioc-devel > [[alternative HTML version deleted]] _______________________________________________ Bioc-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/bioc-devel
