[R] simplify this instruction
Claudia Beleites
cbeleites at units.it
Thu Nov 20 00:45:20 CET 2008
in addition to %in% and depending on what the general principle behind the
setup is:
you may want to have a look into switch (e.g. if there happen to be "C"s
and "D"s...).
or, of course you can check for B being between 0 and 9 rather than being the
respective integers:
ifelse ((B > 0) && (B <= 9)), "A", "B")
HTH
Claudia
> Is there a way to simplify this instruction:
> ifelse(B=="0","A",
> ifelse(B=="1","A",
> ifelse(B=="2","A",
> ifelse(B=="3","A",
> ifelse(B=="4","A",
> ifelse(B=="5","A",
> ifelse(B=="6","A",
> ifelse(B=="7","A",
> ifelse(B=="8","A",
> ifelse(B=="9","A","B"))))))))))
>
> i am looking for something like this:
>
> ifelse(B=="(0:9)","A","B")
>
> Best regards
--
Claudia Beleites
Dipartimento dei Materiali e delle Risorse Naturali
Università degli Studi di Trieste
Via Alfonso Valerio 6/a
I-34127 Trieste
phone: +39 (0 40) 5 58-34 47
email: cbeleites at units.it
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