[R] replacing text
mschwartz at medanalytics.com
Fri Jul 12 21:34:05 CEST 2002
> -----Original Message-----
> From: Thomas Lumley [mailto:tlumley at u.washington.edu]
> Sent: Friday, July 12, 2002 2:27 PM
> To: Marc Schwartz
> Cc: r-help at r-project.org
> Subject: Re: [R] replacing text
> On Fri, 12 Jul 2002, Marc Schwartz wrote in reply to>>
> > >> Position and number of dots vary, and not follow specific
> > >> I wish to replace all the dots by "_" in vect, so that it
> > >> looks like
> > >> "a_bcd_ef","gh_i", etc..
> > Be Careful! The "_" character is an assignment operator!
> > gh_i
> > is the same as
> > gh <- i
> but only if you evaluate it. This sort of transformation might often
> needed in transferring data to/from another system where "." is
> but "_" isn't. It's done (in C code) in read.dta/write.dta in the
> package, for example.
Very true. Thanks for elaborating on this.
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