Yes! Would you mind filing an issue so I dont forget? Hadley On Friday, July 29, 2011, Stavros Macrakis <macra...@alum.mit.edu> wrote: > Perfect! Thanks! > By the way, I see that, unlike base rbind, it does not work for vectors and lists: > rbind(c(a=1),c(b=2)) => matrix(1:2,2,1,dimnames=list(NULL,"a")) == as.matrix(data.frame(a=1:2)) > but > rbind.fill(c(a=1),c(b=2)) => NULL > Shouldn't it give something like > matrix(c(1,NA,NA,2),2,2,dimnames=list(NULL,c("a","b"))) > or > data.frame(a=c(1,NA),b=c(NA,2)) > If, on the other hand, it insists on data.frames as input, it should err out if give non-data-frames. > -s > > On Thu, Jul 28, 2011 at 19:30, Hadley Wickham <had...@rice.edu> wrote: >> >> Use plyr::rbind.fill? That does match up columns by name. >> Hadley >> >> On Thu, Jul 28, 2011 at 5:23 PM, Stavros Macrakis <macra...@alum.mit.edu> wrote: >> > I have a file of data where each line is a series of name-value pairs, but >> > where the names are not necessarily the same from line to line, e.g. >> > a=1,b=2,d=5 >> > b=4,c=3,e=3 >> > a=5,d=1 >> > I would like to create a data frame which lines up the data in the >> > corresponding columns. In this case, this would be >> > data.frame( a = (1, NA, 4), b = (2, 4, NA), c = (NA, 3, NA), d = (5, NA, >> > 1), e = (NA, 3, 1) ) >> > One way I can think of doing this is to read in the data as one 'long' data >> > frame per line with a unique ID, e.g. line one becomes >> > cbind(id=1,data.frame(variable=c('a','b','d'),value=c(1,2,5))) >> > then rbind all the lines and use the reshape package function 'cast'. >> > Is there a more straightforward way? (I'd have thought rbind would line up >> > columns by name, but it doesn't.) >> > -s >> > >> > -- >> > You received this message because you are subscribed to the Google Groups >> > "manipulatr" group. >> > To post to this group, send email to manipul...@googlegroups.com. >> > To unsubscribe from this group, send email to >> > manipulatr+unsubscr...@googlegroups.com < manipulatr%2bunsubscr...@googlegroups.com>. >> > For more options, visit this group at >> > http://groups.google.com/group/manipulatr?hl=en. >> > >> >> >> >> -- >> Assistant Professor / Dobelman Family Junior Chair >> Department of Statistics / Rice University >> http://had.co.nz/ <http://had.co.nz/> > >
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