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resultdf
2010 Sep 09
0
Fast / dependable way to "stack together" data frames from a list
...f4)
## Here's the way we have done it. We understand this,
## we believe the result, it is easy to remember. It is
## also horribly slow for a long list.
resultDF <- mylist[[1]]
for (i in 2:4) resultDF <- rbind(resultDF, mylist[[i]])
## It works better to just call rbind once, as in:
resultDF2 <- rbind( mylist[[1]],mylist[[2]],mylist[[3]],mylist[[4]])
## That is faster because it calls rbind only once.
## But who wants to do all of that typing? How tiresome.
## Thanks to Erik Iverson in r-help, I understand that
resultDF3 <- do.call("rbind", mylist)
## is doing the E...