R Benchmark: Merge vs fast.merging

January 14, 2013

(This article was first published on XRGB, and kindly contributed to R-bloggers)

Last summer as a trainee I ran into a bit of trouble with the merge function in R. The main problem is that it’s slower then your avarage tortoise in a tard field. Also I could not use rbind because of the different lengths of the frames. In code I mean that the next scheme is really slow when you have alot of files:

complete = read.csv(yourfiles[1])

for(i in 2:length(yourfiles)){
part =

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