On Mar 3, 2010, at 11:29 , blue sky wrote:
R-ints.pdf mentions pairlist with the reference to mit-scheme.
However, it is not clear to me what 'pairlist' exactly refers to, as
I don't find the definition for it. Does a 'pairlist' in R
equivalent to a pair or a list (which is essentially a pair whose
cdr is a list) in mit-scheme?
pairlist is short for "dotted pair list" (see ?pairlist) which is a
syntax for specifying linked lists as ( CAR . CDR ). Since the term
"list" has a different meaning in R, using just "list" would be
ambiguous (in the current R lists are implemented as generic vectors,
not as linked lists).
Cheers,
Simon
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