[R] converting strings to expressions

Peter Dalgaard p.dalgaard at biostat.ku.dk
Thu Sep 14 22:40:09 CEST 2006


Peter Dalgaard <p.dalgaard at biostat.ku.dk> writes:

> Actually, you need to be even more careful because has commonly been

Drats! ...because _what_ has..., of course. Talk about being careful. 

> called "unevaluated expressions" cover symbols and constants too.
> I.e., quote(1) and quote(x) are not calls. And such non-call objects
> can be elements of an expression vector.
> 
> -- 
>    O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
>   c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
>  (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
> ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 

-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907



More information about the R-help mailing list