(fwd) Re: [R] the underscore ("_") in variable name

Duncan Murdoch murdoch at stats.uwo.ca
Tue Oct 3 16:18:00 CEST 2000

On Tue, 03 Oct 2000 14:45:32 +0000, you wrote in message
<39D9F10C.F0E51F4B at ipimar.pt>:

>Duncan Murdoch wrote:

>> (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.

No, please don't!  I was suggesting ":=", not "=", and I wasn't
serious.  A lone equal sign is used in too many languages (e.g.
standard mathematical notation, standard pseudocode, Pascal and its
descendants, etc.) to indicate a statement or test of equality.  The
mis-use of it in Fortran, C and BASIC aren't examples we want to

I think we're stuck with "<-", despite the deficiencies I pointed out
in my earlier message, and we should learn to live with it.  I'm
ambivalent about " _ ".  

Duncan Murdoch
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