mark at myatt.demon.co.uk
Fri Jul 20 13:47:10 CEST 2001
Debra Taylor <debrat at bestweb.net> writes:
> I have a question about stacking datasets.
> I have 40 stata datasets that have exactly the same number of
> variables, with the same names (~420k rows, 8 columns).
> The datasets are relatively large ~ 15 megs.
> If they were text files a linux "cat file1 file2 >> combo" sort of
> strategy would work.
> Does somebody have an R solution in mind?
Read each data file in as a data frame then use the rbind() function.
a <- read.table("file1", header = T)
b <- read.table("file2", header = T)
my.data <- rbind(a, b)
# remove the excess 15MB ...
a <- read.table("file3", header = T)
my.data <- rbind(ab, a)
# and so on ... finally removing the excess 15MB ...
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