[R] Re: coding factor replicates
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Thu Jan 24 12:25:23 CET 2002
Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk> writes:
> Now we can do (breaks horribly if there's an empty factor level, though):
>
> unsplit(lapply(table(f), seq)))
Oops, make that:
unsplit(lapply(table(f), seq)), f)
>
> and the within-group z-score from the other day would become
>
> unsplit(tapply(x,f,scale),f)
--
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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