[R] removing rows from a dataframe
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Mon Sep 4 00:40:40 CEST 2000
Douglas Bates <bates at stat.wisc.edu> writes:
> > newhilodata <- subset(hilodata, diff(c(0,as.integer(sym))) != 0)
> > (actually, the as.integer is unnecessary because the c() will unclass
> > the factor automagically)
> Alternatively, you could use the match function because it returns the
> first match.
Or, as Robert pointed out to me privately: duplicated() does the trick
got to be the simplest variant.
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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