[R] timeAlign

[Prof Brian Ripley]

Are you looking for trunc.POSIXt?  That does the -1 direction, and its 
code could easily be adapted (or just add one unit).

I don't see what this has to do with 'align'.

On Mon, 10 Apr 2006, Omar Lakkis wrote:

> I use POSIXct for datetimes. Is thee a timeAlign function that I can
> use where :
>
> align by year
>      direction -1 ==> start of this year
>      direction 1  ==> start of next year
> align by week
>      direction -1 ==> date on last sunday
>      direction 1  ==> date on next sunday
> align by day
>      direction -1 ==> time at past midnight
>      direction 1  ==> time at this comming midnight
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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