Yes, I caught my error once I posted it - I was fiddling with match prior
to hammering down with merge but your solution is much better. Thank you.
On Fri, Jul 12, 2013 at 3:05 PM, David Winsemius <dwinsem...@comcast.net>wrote:
>
> On Jul 12, 2013, at 2:56 PM, Trevor Davies wrote:
>
> > I always think that replying to your own r-help feels silly but it's good
> > to close these things out.
> >
> > here's my hack solution:
> >
> >
> x1<-merge(data.frame(A=x),data.frame(A=c('x','y','z'),B=c(1,2,2)),by='A')[,2]
>
> That fairly tortured compared with:
>
> x <- c(rep('x',3),rep('y',3),rep('z',3))
>
> x1b <- as.character(1:3)[ match(x, c("x","y","z") ) ]
> x1b
>
> Furthermore, your solution does not deliver the answer you expected.
>
> --
> David.
>
> >
> > Well that works and should for my more complex situation. If anyone has
> > something a little less heavy handed I'd live to hear it.
> >
> > Have a great weekend.
> >
> >
> > On Fri, Jul 12, 2013 at 2:18 PM, Trevor Davies <davies.tre...@gmail.com
> >wrote:
> >
> >>
> >> I'm trying to find a function that can replace multiple instances of
> >> values or characters in a vector in a one step operation. As an
> example,
> >> the vector:
> >>
> >> x <- c(rep('x',3),rep('y',3),rep('z',3))
> >>
> >>> x
> >> [1] "x" "x" "x" "y" "y" "y" "z" "z" "z"
> >>
> >> I would simply like to replace all of the x's with 1's, y:2 & z:3 (or
> >> other characters).
> >> i.e:
> >>> x
> >> [1] "1" "1" "1" "2" "2" "2" "3" "3" "3"
> >>
> >> Of course, I'm aware of the replace function but this obviously gets a
> >> little unwieldy when there are :
> >> x<-replace(x,x=='x',1)
> >> x<-replace(x,y=='x',2)
> >> x<-replace(x,z=='x',3)
> >>
> >> but I can't figure out how to do it in a one stop operation. My real
> >> needs is more complex obviously. This is one of those seemingly simple
> >> r-operations that should be obvious but I'm coming up empty on this one.
> >>
> >> Thanks for the help.
> >> Trevor
> >>
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org 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.
>
> David Winsemius
> Alameda, CA, USA
>
>
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