bysort patientname (date) : gen second = type == "DS" & type[_n-1] == "DS"
Nick
On Mon, Mar 4, 2013 at 7:43 PM, Michael Stewart
<michaelstewartresearch@gmail.com> wrote:
> I am working on a health care database and am trying to weed out duplicates
>
> My data is as follows
>
> Patientname date_of_event type
> xxxx 1/1/2010 HP
> xxxx 1/2//2010 DS
> xxxx 1/3/2010 DS
> xxxx 1/5/2010 HP
> xxxx 1/6//2010 DS
> yyyy 1/4/2011 HP
> yyyy 1/5/2011 DS
>
> Here in this dataset DS refers to discharge summary and HP refers to
> history and physical
>
> I am specifically trying to find out for each patient: if two DS are
> separated by a HP
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