[Rd] backtick notation

Thomas Lumley tlumley at u.washington.edu
Thu Aug 7 09:48:55 MEST 2003

On Thu, 7 Aug 2003, Gabor Grothendieck wrote:

> Could someone explain the thinking behind the backtick notation in
> r-devel?
> I think I understand that it can be used to refer to variable names
> which would otherwise not conform to R syntax; however, assign and
> as.name already allow you to do this.  Is there more to it than that?

assign and as.name are fairly limited.  For example, if you have a list or
data frame whose name is syntactically invalid it is quite difficult to
access or modify its columns.


Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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