[acs-r] ACS tables that deal with race
Ezra Haber Glenn
eglenn at mit.edu
Thu Apr 2 17:13:07 EDT 2015
Yes -- the warning is simply there because as of the most recent date
of the package, the 2013 data wasn't available. If you run your code,
you'll see that despite the warning, the data gets fetched. (This is
why it is a warning and not an error, but I know it's confusing and
will change in the next version.)
--Ezra
At Thu, 2 Apr 2015 13:26:17 -0700, arilamstein wrote:
>
> Thanks Mark.
>
> I need to use zctas because I am creating a demo of my package which visualizes zctas in R
> (https://github.com/arilamstein/choroplethrZip).
>
> When I try to access 2013 data I get this warning:
>
> library(acs)
> zip_geo = geo.make(zip.code = "*")
> data = acs.fetch(geography=zip_geo, table.number = "B03002", col.names = "pretty", endyear
> = 2013, span = 5)
>
> Warning messages:
> 1: In acs.fetch(geography = zip_geo, table.number = "B03002", col.names = "pretty", :
> As of the date of this version of the acs package
> Census API did not provides data for selected endyear
>
> Is this warning spurious?
>
> Thanks.
>
> Ari
>
> On Thu, Apr 2, 2015 at 9:17 AM, Corrales, Mark <Corrales.Mark at epa.gov> wrote:
>
> I would suggest using newer data (2009-2013 is available), and consider using tracts
> (or even block groups) instead of zip codes/ZCTAs because they are more stable over
> time and can be rolled up into county totals, etc.
>
> As to which table, you might consider table B03002, which in one table gives you all
> the counts you need, from which you can calculate percentages, for these eight race/
> ethnicity groups (which add up to the total population):
>
> Hispanic or Latino
> Not Hispanic or Latino: White alone
> Not Hispanic or Latino: Black or African American alone
> Not Hispanic or Latino: American Indian and Alaska Native alone
> Not Hispanic or Latino: Asian alone
> Not Hispanic or Latino: Native Hawaiian and Other Pacific Islander alone
> Not Hispanic or Latino: Some other race alone
> Not Hispanic or Latino: Two or more races
>
> Just divide the count by the Total shown in that same table.
>
> http://factfinder.census.gov/faces/affhelp/jsf/pages/metadata.xhtml?lang=en&type=table
> &id=table.en.ACS_13_5YR_B03002#
>
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> 1. ACS tables that deal with race (arilamstein at gmail.com)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 1 Apr 2015 16:35:53 -0700
> From: <arilamstein at gmail.com>
> Subject: [acs-r] ACS tables that deal with race
> To: acs-r <acs-r at mit.edu>
> Message-ID:
> <CAEO2ku+owU0nFvgthQzm0SG_Rwun0xN8jhiMC=3miZkjbFMAhw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hello,
>
> I am a bit confused by the ACS tables that deal with race. For reference, I am
> currently working with the 2011 5 year ACS tables which are listed here <http://
> factfinder.census.gov/faces/affhelp/jsf/pages/metadata.xhtml?lang=en&type=dataset&id=
> dataset.en.ACS_11_5YR>,
> and I am trying to get data on ZCTAs. My goal is to create choropleth maps of San
> Francisco that show key demographic information.
>
> Table B02008 is listed as WHITE ALONE OR IN COMBINATION WITH ONE OR MORE OTHER RACES
> but it returns a count of people, not a percentage of the total population. There seem
> to be various "G" tables that give the percentage of people who are white alone (e.g.
> GCT0201), but a) none of those geographic units are ZCTAs and b) IIRC acs.r cannot
> retrieve tables that start with a G.
>
> Presumably I could just divide those numbers by the result of table B00001 (UNWEIGHTED
> SAMPLE COUNT OF THE POPULATION ) or B01003 (TOTAL POPULATION ), but I'm not sure what
> the difference is between those two tables are. Can someone give me some pointers?
>
> Thanks.
>
> Ari
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--
Ezra Haber Glenn, AICP
Department of Urban Studies and Planning
Massachusetts Institute of Technology
77 Massachusetts Ave., Room 7-337
Cambridge, MA 02139
eglenn at mit.edu
http://dusp.mit.edu/faculty/ezra-glenn | http://eglenn.scripts.mit.edu/citystate/
617.253.2024 (w)
617.721.7131 (c)
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