[EMAIL PROTECTED] writes: > Hello everybody, > > could anybody give me a hint, who I can use rbind on a list of data.frames, please? > > I have a list with a large number of data.frames of the same structure, like: > LIST <- list(X1=data.frame(a=1,b=2), X2=data.frame(a=3,b=4), > X3=data.frame(a=5,b=6), ...., XN=data.frame(a=i,b=k)) > > I would like to bind all data.frames very fast to a single data.frame, something > like that: > DF <- rbind(LIST$X1, LIST$X2, LIST$X3, ..., LIST$XN) > > But for performance (speed) reasons I won't use a loop. I also couldn't find a > solution how > I could use lapply. One constraint is, that the number of data.frames in the list is > not determined > and can vary from one to more than thousand. > Any help is apreciated, thank you in advance.
Bill V.'s favourite trick: do.call("rbind", LIST) > Lutz Thieme > Product Engineering > AMD Saxony Limited Liability Company & Co. KG Anyone tried getting R to run on Opterons in 64 bit mode BTW? Those machines are quickly approaching Xeon prices around here.. -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help