If DF is your data frame then create a time column like this:
DF$time <- ave(DF$DaysAgo, DF$PID, FUN = seq_along)
and now use the reshape command on DF (or melt/cast
from the reshape package).
On Thu, Apr 24, 2008 at 2:13 PM, Tubin <[EMAIL PROTECTED]> wrote:
>
> hi, I'm a total noob who is havin
hi, I'm a total noob who is having to ramp up to full speed very quickly due
to an unfortunate abrupt staffing change at my job :)
I have longitudinal data that looks like this:
PID OBSDATEDaysAgo CleanValue
NAME
1 1410164934000610 8/17/2004 13:03:38
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