Missouri Census Data Center

----- May 3, 2017 -----

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MABLE/Geocorr and CAPS

These are two of the Missouri Census Data Center's most venerable and popular web applications. Both have been around for over ten years (the first version of Geocorr was in 1996) and both are now available in multiple versions. To help users to choose the best version for their needs we have created a pair of index pages for the two applications.

The capsindex page has brief descriptions of and links to the current four versions of the CAPS application (as follows):

Select Version:  Click on the version name to be taken to that application.
  • ACS Data. This is the current production version that works with the latest available data from the ACS (American Community Survey).

  • ACS Data -Beta. The beta test version is similar to the production version in that it works with the same underlying ACS data. But it has some important new features:

  • 2010 Census Data. This version works with census block level data from the 2010 census ("Summary File 1" for those familiar with the Census data products). This is a good choice if you want just basic demographic data (age, race, sex, Hispanic, etc.) and can live with the fact that this is 2010 data (starting to get old).

  • CAPS Classic. This is the orginal version of the application written circa 2002 that works with data from the 2000 decennial census. Unlike the 2010 censu version that has limited ("short form only") data, these reports show a much richer set of data (taken from Summary File 3).

  • Batch CAPS. This is not the same kind of animal as the other web-based applications. The link here is to a page titled "ALPS Geoservices Cost Estimates". This fee-based service is for users who have large files of point-based data (typically, but not necessarily geocode address files). The CAPSacs service is recommended. It makes use of the same BBIA logic as the latest ACS web module. But we have rewritten the code to optimize it for doing many sites in a single run. The output is a csv file suitable for turning into an Excel file. To see what it would cost to have us run this service for you just fill in the number of records (addresses/sites) you have and check the box for the CAPSacs service, then hit Submit Query.

Users should be aware that the "beta" version of the application has been working without any reported problems for the last six months. It has some significant enhancements, especially for users working with smaller radii for their circular areas.

The new Batch CAPS option was created partly in reponse to numerous instances of users running hundreds or even thousands of instances of the application in a short time, creating load problems on the server. We ask users to limit their use of our web applications to no more than 500 a day. Users who consistently exceed that limit may be put on a deny-service list.

The new geocorr_index provides similar links to the various versions (4) of the MABLE/Geocorr application currently available. It also has a section with links to doumentation for the application(s).

These new index pages are now referenced by the links in our Quick Links box.

Presentation: Accessing ACS Data on the MCDC Web Site

The power point file for John Blodgett's presentation at the 2017 ACS Data Users Conference (Alexandria, VA, May 11-12) has been posted to our tutorials directory. There is also a companion page with links to the various pages cited in the presentation. This is a very brief presentation (15 minutes) so it's a pretty light overview of of our ACS-related resources.

This file last modified Thursday August 17, 2017, 11:50:27

The Missouri Census Data Center is a sponsored program of the Missouri State Library within the office of the Missouri Secretary of State. The MCDC has been a partner in the U.S. Census Bureau's State Data Center program since 1979.

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