<p>This data set contains the racial composition, the registration rate, the
number of eligible voters as well as the actual observed racial registration
rates for every county in four US southern states: Florida, Louisiana, North
Carolina, and South Carolina.</p>

datasets

Implements the Bayesian and likelihood methods proposed
in Imai, Lu, and Strauss (2008 <DOI: 10.1093/pan/mpm017>) and
(2011 <DOI:10.18637/jss.v042.i05>) for ecological inference in 2
by 2 tables as well as the method of bounds introduced by Duncan and
Davis (1953).  The package fits both parametric and nonparametric
models using either the Expectation-Maximization algorithms (for
likelihood models) or the Markov chain Monte Carlo algorithms (for
Bayesian models).  For all models, the individual-level data can be
directly incorporated into the estimation whenever such data are available.
Along with in-sample and out-of-sample predictions, the package also
provides a functionality which allows one to quantify the effect of data
aggregation on parameter estimation and hypothesis testing under the
parametric likelihood models.

Ying Lu

Ecological Inference in 2x2 Tables

Kosuke Imai

Aaron Strauss

Hubert Jin

reg function

<p>A data frame containing 5 variables and 275 observations</p><table class="table">
<tr><td>X</td><td>numeric</td><td>the fraction of Black voters</td></tr>
<tr><td>Y</td><td>numeric</td><td>the fraction of voters who registered themselves</td></tr>
<tr><td>N</td><td>numeric</td><td>the total number of voters in each county</td></tr>
<tr><td>W1</td><td>numeric</td><td>the actual fraction of Black voters who registered themselves</td></tr>
<tr><td>W2</td><td>numeric</td><td>the actual fraction of White voters who registered
themselves</td></tr>
</table><p></p><p></p>

Format

Voter Registration in US Southern States — reg

<p>A data frame containing 5 variables and 275 observations</p><table class='table'>
<tr><td>X</td><td>numeric</td><td>the fraction of Black voters</td></tr>
<tr><td>Y</td><td>numeric</td><td>the fraction of voters who registered themselves</td></tr>
<tr><td>N</td><td>numeric</td><td>the total number of voters in each county</td></tr>
<tr><td>W1</td><td>numeric</td><td>the actual fraction of Black voters who registered themselves</td></tr>
<tr><td>W2</td><td>numeric</td><td>the actual fraction of White voters who registered
themselves</td></tr>
</table>



reg: Voter Registration in US Southern States

Description

Arguments

Format

References

X	numeric	the fraction of Black voters
Y	numeric	the fraction of voters who registered themselves
N	numeric	the total number of voters in each county
W1	numeric	the actual fraction of Black voters who registered themselves
W2	numeric	the actual fraction of White voters who registered themselves