hack the census, unleash the power of data
TRANSCRIPT
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Powering New Orleans Economic BenchmarksAlicia BrownApril 13, 2016hacking the Census API via FME
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The Team
Data AnalystSocrata
Data AnalystSocrata
Program ManagerSocrata
Alicia Brown Daniella Kuttner Chris Rieth
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New Orleans Mission● Develop & Track performance goals● Benchmark Progress against comparable
cities● Validate findings using federal and 3rd party
data● Use FME to automate indicator data retrieval
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Census API● Census publishes American Community Survey
yearly● API provides data from 2011 - 2014● Example for Travel Time to work:
http://api.census.gov/data/2014/acs1?get=NAME,B08303_001E,B08303_002E,B08303_003E,B08303_004E&for=place:55000&in=state:22&key=YOUR_API_KEY
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Let’s look at the Workflow
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Python Caller Transformer
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Attribute Renamer
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Calculate & Aggregate
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Voila…. https://data.nola.gov/d/qwed-53qf
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Parameters to handle future years
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Lessons Learned● There is a limit of 50 variables for single call● Need to handle missing data for some
variables & geographies● The type of ACS year (1,3,5) is dependent on
the population size of a geographical area so that sample is representative of it
● Categorical measurements may change over years
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Thanks to Melissa with the City of New Orleans for giving us this amazing task!
Resources● ResultsNOLA● github.com/socrata/connectors/cen
sus● ACS 1 YR API documentation● census.gov/developers
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