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<h2>Spatiotemporal congressional district data</h2> <p>Levi John Wolf</p> <p><a href="https://t.co/8wUY8Hk9Us" rel="nofollow">Explore this data on CARTO</a></p> <p>This is new data product extending Prof. Gary King's database of US Congressional Elections <a href="http://www.icpsr.umich.edu/icpsrweb/ICPSR/studies/6311" rel="nofollow">(ICPSR 6311)</a> with data put together by Prof. Ken Kollman (and many others) in the <a href="http://www.electiondataarchive.org/datacenter.html" rel="nofollow">Constituency Level Electoral Archive</a>, merged together with the <a href="cdmaps.polisci.ucla.edu" rel="nofollow">district shapefiles</a> mantained by Prof. Jeffrey Lewis at UCLA. All data on vote shares after 1992 come from the CLEA and incumbency info after 1992 was hand-coded. </p> <p>The dataset provenance and grounding is discussed in the submitted writeup for <em>Scientific Data</em> (<code>sdata.pdf</code>). The table is a csv split into two halves, one before 1948 and one after 1948. Most columns retain the same meaning from ICPSR-6311, with <code>inc</code> being an incumbency indicator and <code>vote_share</code> being the share of the two-party vote won by Democrats. The geometries are polygons/multipolygons stored in hex-encoded WKB in the last column of the CSV. The remainder of the fields are describe in the submitted <em>Scientific Data</em> data descriptor. </p>
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