(fwd) Re: [R] the underscore ("_") in variable name
amurta at ipimar.pt
Tue Oct 3 16:45:32 CEST 2000
Duncan Murdoch wrote:
> I don't follow this argument. Underscore isn't used anywhere else in
> the language, so when you see one, you know it's an assignment. On
> the other hand, both "<" and "-" have multiple other uses. This leads
> to lots of possibilities for confusion:
> x <--5
> x < -5
> x <- 5
Those are classic examples. Nevertheless, "<-" is more appealing visually than "_"
as an assignment operator, mainly because "_" is used in file and variable names
in other programming languages.
> (Of course, I actually prefer the Pascalian :=, but I realize that
> puts me in a double minority :-).
Here I agree with you. I think that future releases of R should have "=" as the
assignement operator, just like the last version of S.
__________________ Alberto G. Murta ______________________
IPIMAR - Institute of Fisheries and Sea Research
Avenida de Brasilia; 1449-006 Lisboa; Portugal
Tel:351 213027062; Fax:351 213015948; http://www.ipimar.pt
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