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