[Rd] Proposal unary - operator for factors

Hadley Wickham hadley at rice.edu
Thu Feb 4 06:19:21 CET 2010

>>> Could you remind me what xtfrm stands for?
>> No, I don't think I ever worked it out. :-)
> The same logic as strxfrm.

strxfrm is short for string transform.
=> stxfrm is short for string tansform
=> txfrm is short for tansform
=> xtfrm is short of snatform?



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