[Rd] question
Peter Dalgaard BSA
p.dalgaard@biostat.ku.dk
07 Dec 2001 23:31:52 +0100
Erich Neuwirth <erich.neuwirth@univie.ac.at> writes:
> in r 1.3.1,
> i read in data into a dataframe and (erroneously) forgot to convert text
> into numbers.
>
> the frame was called olddata
> then i could to the following calculation:
>
> vp95<-olddata["vp95"]/olddata["wb95"]
>
> "vp95" and "wb95" are column names.
>
> in r 1.4.0, this does not work any more.
> i have to do
>
> vp95<-as.real(olddata[,"vp95"])/as.real(olddata[,"wb95"])
>
> is this intended behavior now?
Eh? Could you give an example of how to create such a data frame? The
things I can think up give the same in both versions?
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907
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