Monthly Archives: August 2015

Making maps with ACS data

Posted by Ezra Glenn on August 26, 2015
Uncategorized / Comments Off on Making maps with ACS data

A new blog post on RevolutionAnalytics describes a way to use the acs.R and choroplethr packages in R to make maps based on data from the US Census American Community Survey. Click here for more.

A user asks…: acs.R and the 2013 census data

Posted by Ezra Glenn on August 17, 2015
Uncategorized / Comments Off on A user asks…: acs.R and the 2013 census data

An acs.R user asks:

Are there any plans for 2013 data to be incorporated into the acs
package?

Great question. Here is a great answer:

At present, the package is actually able to fetch the 2013 5-year ACS data, with two important caveats:

  1. you must specify the table number or variable number directly – you can’t use keywords, since the current version of the package lacks the correct lookup tables for 2013; and
  2. the acs.fetch function will give you some warnings about how “As of the date of this version of the acs package Census API did not provides data for selected endyear” – but you can safely ignore that.

See below for a basic example. (This said, I do want to release an updated version soon that will include the lookup tables and avoid the warnings.)

> acs.fetch(geography=geo.make(state=25, county="*"), table.number="B01003", endyear=2013)
ACS DATA: 
 2009 -- 2013 ;
  Estimates w/90% confidence intervals;
  for different intervals, see confint()
                                 B01003_001   
Barnstable County, Massachusetts 215449 +/- 0 
Berkshire County, Massachusetts  130545 +/- 0 
Bristol County, Massachusetts    549870 +/- 0 
Dukes County, Massachusetts      16739 +/- 0  
Essex County, Massachusetts      750808 +/- 0 
Franklin County, Massachusetts   71408 +/- 0  
Hampden County, Massachusetts    465144 +/- 0 
Hampshire County, Massachusetts  159267 +/- 0 
Middlesex County, Massachusetts  1522533 +/- 0
Nantucket County, Massachusetts  10224 +/- 0  
Norfolk County, Massachusetts    677296 +/- 0 
Plymouth County, Massachusetts   497386 +/- 0 
Suffolk County, Massachusetts    735701 +/- 0 
Worcester County, Massachusetts  802688 +/- 0 
Warning messages:
1: In acs.fetch(geography = geo.make(state = 25, county = "*"), table.number = "B01003",  :
  As of the date of this version of the acs package
  Census API did not provides data for selected endyear
2: In acs.fetch(endyear = endyear, span = span, geography = geography[[1]],  :
  As of the date of this version of the acs package
  Census API did not provides data for selected endyear