Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Thu Jul 19 17:37:01 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.
> I've considered using a merge command, but I don't want any records
> merged, only appended. Also, I don't want any variables to be renamed.
> Given there unique nature, using a simple
> merge(read.dta('file1'),read.dta('file2')) would give me (I think) what
> I am looking for but seems incredibly inefficient.
> There are a number of ways I could approach this all of which involve a
> non-R solution.
> Does somebody have an R solution in mind?
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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