Transcription of CREATING A ZIP-CODE MAP WITH
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CREATING A ZIP-CODE MAP WITH
CREATING A ZIP-CODE MAP WITH COUNTY BORDERS AND CITY LABELSR achel PotterMSUGO ctober 20, 2016 OVERVIEWFrom this:To this (a pdf):proc mapimportproc gmapproc gprojectgoptionsods1. MAKE A DATASET OF ZIP code -LEVEL DATAREADY THE DATA FOR MAPPING/*coverage by zip code */datazipcovg;lengthzcta5ce10 $5.; ;zcta5ce10 = zip;run;proc format;valuecovgfmtLOW - < 'LOW' 'MEDIUM LOW' 'MEDIUM HIGH' HIGH = 'HIGH';run;2. MAKE A ZIP code MAPZIP code TABULATION AREAS (ZCTA)ZCTAs are generalized areal representations of Postal Service ZIP CodesThe Census Bureau creates ZCTAs by: Examining all addresses within a census block The most frequently occurring ZIP code within each block is assigned to the entire block If a block had addresses, but ZIP code frequencies were tied, it is assigned to the ZCTA with which it has the longest shared boundary Areas wi
CREATING A ZIP-CODE MAP WITH COUNTY BORDERS AND CITY LABELS Rachel Potter MSUG October 20, 2016
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