| upperCombined | R Documentation |
These data present measures of ideology in 2010 for the districts for upper
chambers of state legislatures, recorded as the variable krige.upper.
All 50 states' chambers are covered (including the Nebraska Unicameral).
Forecasts are based on a kriging model fitted over the 2008 Cooperative Congressional
Election Survey (CCES), paired with predictive data from the 2010 Census. Each
district's public ideology is paired with a measure of the ideology of the State
Senate member from the district (update from Shor and McCarty 2011).
The upperCombined dataset has 1989 observations and 10 variables.
stTwo-letter postal abbreviation for the state.
upperThe state legislative district number (upper chamber).
STATEAThe FIPS code for the state.
krige.upperThe ideology of the average citizen in the district.
upperKlugeCombined index of STATEA followed by upper.
krige.upper.varThe variance of ideology among the district's citizens.
nameLast name of the state legislator, followed by first name and middle initial.
partyPolitical party of the legislator. D=Democrat, R=Republican, X=Other.
st_idTemporary identifer variable. DO NOT USE.
np_scoreIdeology score for the state legislator (upper chamber). Higher values are usually interpreted as more right-wing, with lower values as more left-wing.
Ansolabehere, Stephen. 2011. "CCES, Common Content, 2008." Ver. 4.
Minnesota Population Center. 2011. National Historical Geographic Information System: Version 2.0. Minneapolis, MN: University of Minnesota. https://www.nhgis.org
Shor, Boris and Nolan M. McCarty. 2011. "The Ideological Mapping of American Legislatures." American Political Science Review 105(3):530-551.
Jeff Gill. 2020. Measuring Constituency Ideology Using Bayesian Universal Kriging.
State Politics & Policy Quarterly. doi:10.1177/1532440020930197
# Descriptive Statistics
summary(upperCombined)
# Correlate Senators' DW-NOMINATE Scores with Public Opinion Ideology
cor(upperCombined$np_score,upperCombined$krige.upper,use="complete.obs")
# Plot Legislators' DW-NOMINATE Scores against Public Opinion Ideology
plot(y=upperCombined$np_score,x=upperCombined$krige.upper,
xlab="District Ideology (Kriging)", ylab="Legislator Ideology (Shor & McCarty)",
main="State Legislatures: Upper Chambers", type="n")
points(y=upperCombined$np_score[upperCombined$party=="R"],
x=upperCombined$krige.upper[upperCombined$party=="R"],pch=".",col="red")
points(y=upperCombined$np_score[upperCombined$party=="D"],
x=upperCombined$krige.upper[upperCombined$party=="D"],pch=".",col="blue")
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