Date:         Thu, 9 Dec 2004 09:38:20 -0500
Reply-To:     "Michael S. Zdeb" <msz03@HEALTH.STATE.NY.US>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Michael S. Zdeb" <msz03@HEALTH.STATE.NY.US>
Subject:      Re: proc gmap and zipcode boundries
Comments: To: nevin <nevinkrishna@HOTMAIL.COM>
Content-type: text/plain; charset=US-ASCII

Hi.  If you have V9, there is a new PROC, MAPIMPORT.  It converts
shapefiles to SAS map data sets.  There are lots of free shapefiles on the
web.  One place is...

http://www.census.gov/geo/www/cob/index.html

There you will find a shapefile for Louisiana ZCTAs --- the census bureau
version of ZIPs.  They are close to ZIPs, but you should read more...

http://www.census.gov/geo/ZCTA/zcta.html

That map is OK for 2000, but since ZIPs change at the behest of the post
office, it may not be accurate for 2004.  You can buy ZIP boundary files in
a number of formats at...

http://www.geographic.com/home/index.cfm

If you buy one in URBAN format, there is a SAS macro that will convert the
file to a SAS mapa data set.

Mike Zdeb
U@Albany School of Public Health
1 University Drive
Rensselaer, NY   12144-3456
(P)518-402-6479
(F)630-604-1475



|---------+---------------------------->
|         |           nevin            |
|         |           <nevinkrishna@HOT|
|         |           MAIL.COM>        |
|         |           Sent by: "SAS(r) |
|         |           Discussion"      |
|         |           <SAS-L@LISTSERV.U|
|         |           GA.EDU>          |
|         |                            |
|         |                            |
|         |           12/08/2004 04:28 |
|         |           PM               |
|         |           Please respond to|
|         |           nevin            |
|         |                            |
|---------+---------------------------->
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  |       To:       SAS-L@LISTSERV.UGA.EDU                                                                               |
  |       cc:                                                                                                            |
  |       Subject:  proc gmap and zipcode boundries                                                                      |
  >----------------------------------------------------------------------------------------------------------------------|




Hello,

I have been playing around with the gmap proc in sas and was wondering
about how to create specific map...I can successfully create a map of a
state say Lousiana in which i can plot cases of disease by county
(shaded by level of count ie..green for >10 cases etc).

My question is how can i create a map using zipcode boundries rather
than county lines..for the county maps i have been using the uscounty
map in the maps library..my guess is that i will need to find a map
dataset with the zipcode boundries included..has anyone done something
similar?

 Thanks, Nevin