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SDally
‎04-04-2018
  • 3 Posts
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  • 1 Solutions
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Re: how to compile contious visit dates

by Fluorite | Level 6 in SAS Programming
‎04-03-2018 02:52 PM
‎04-03-2018 02:52 PM
data have2; set have; by client; lagdate = lag(date); if first.client then episode=1; else if date-lagdate>1 then episode+1; run; proc summary data=have2; by client episode; var date; output out=want(drop=_: episode) min=start_date max=stop_date; run; Another approach.   ... View more

Re: County selection in sashelp.zipcode dataset

by Fluorite | Level 6 in SAS Programming
‎03-06-2018 08:16 PM
‎03-06-2018 08:16 PM
Thanks for your reply, HB.  I agree that centroid seems logical, but I would love to see some documentation that says so for sure. ... View more

County selection in sashelp.zipcode dataset

by Fluorite | Level 6 in SAS Programming
‎03-01-2018 04:46 PM
‎03-01-2018 04:46 PM
I am using the sashelp.zipcode dataset to map zip codes to counties.  That dataset contains just one observation per zip code.  Does anyone know what algorithm SAS uses to select the county for zip codes that cross county lines?  Population?  Area?  Centroid?  Something else?  Thanks for your help.    ... View more
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