[R] print format for difftime

[Peter Dalgaard]

Peter Dalgaard <p.dalgaard at biostat.ku.dk> writes:

> "BXC (Bendix Carstensen)" <bxc at steno.dk> writes:
> 
> > Has anyone written a function that will print a difftime in the form:
> > 
> > hh:mm:ss
> > 
> > or
> > 
> > yy-mm-dd hh:mm:ss
> > 
> > depending on the actual size.
> > (sloppy notation for months/minutes, but surely you get the point).
> 
> 
> Ummm, how are you going to convert a number of days to
> years/months/days without specifying an origin? (00-01-00 could be
> 28,29,30, or 31 days.) Unless, of course you want to deal in "banker's
> months" of 30 + 5.25625/12 days.

Doh. Make that 5.2425 (97 leap days per 400 years). What was I
thinking of there? 

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
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