[R] correction to the previously asked question (about merging factors)
Svetlana Eden
svetlana.eden at vanderbilt.edu
Thu Feb 5 21:11:56 CET 2004
I have two factors l1, l2, and I'd like to merge them.
(Remark: The factors can not be converted to charaters)
Function c() does not give me the result I want:
> l1 = factor(c('aaaa', 'bbbb'))
> l2 = factor(c('ccc', 'dd'))
> lMerge = factor(c(l1, l2))
> lMerge
[1] 1 2 1 2
Levels: 1 2
>
I'd like to merge l1 and l2 and to get lMerge
----------------------------------------------
[1] aaaa bbbb ccc dd
Levels: aaaa bbbb ccc dd
instead of
----------
[1] 1 2 1 2
Levels: 1 2
>
How should I do that without converting the factors back to strings.
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Svetlana Eden Biostatistician II School of Medicine
Department of Biostatistics Vanderbilt University
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Svetlana Eden Biostatistician II School of Medicine
Department of Biostatistics Vanderbilt University
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