David Winsemius, MD
On Mar 13, 2009, at 6:17 PM, Jonathan Greenberg wrote:
> I have a numerical vector which contains a (poorly) formatted time
> column, which, in theory, should be HHMM, but was distributed as an
> integer, so, for 12:15 am, it is saved as "15" (e.g. HHMM = 0015
> with the zeroes stripped). I'm trying to use this in conjunction
> with strptime, but I'm thinking because each time is an integer
> ranging from 1 to 4 digits, I probably need to coerce this vector
> using "format" first to add back the leading zeroes -- but I can't
> seem to figure out the specific parameters to send to format().
> Thoughts? I could use the pad0 function in PBSmodelling, but it
> seems to only work on one item at a time (not an entire vector) so I
> thought I'd ask here if there's an easy trick to getting where I
> need to go using on the base package and not needing to write a for-
> next loop to implement pad0.
>
> Thanks!
>
> --j
>
> --
>
> Jonathan A. Greenberg, PhD
> Postdoctoral Scholar
> Center for Spatial Technologies and Remote Sensing (CSTARS)
> University of California, Davis
> One Shields Avenue
> The Barn, Room 250N
> Davis, CA 95616
> Cell: 415-794-5043
> AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT