return the roll call object used in fitting an ideal model
convert entries in a rollcall matrix to binary form
read roll call data in Poole-Rosenthal KH format
predicted probabilities from fitting ideal to rollcall data
A class for creating seats-votes curves
Control Parameters for Zero-inflated Count Data Regression
political parties appearing in the U.S. Congress
Hurdle Models for Count Data Regression
constrain item parameters in analysis of roll call data
create an object of class rollcall
remap MCMC output via affine transformations
Absentee and Machine Ballots in Pennsylvania State Senate Races
plot methods for predictions from ideal objects
nicely formatted tables
Vuong's non-nested hypothesis test
compute predicted probabilities from fitted models
plots an ideal object
trace plot of MCMC iterates, posterior density of legislators'
ideal points
rollcall object, 109th U.S. Senate
elections to Australian House of
Representatives, 1949-2004
Prussian army horse kick data
information about the American states needed for U.S. Congress
summary of an ideal object
Zero-inflated Count Data Regression
article production by graduate students in biochemistry Ph.D. programs
Control Parameters for Hurdle Count Data Regression
add information about voting outcomes to a rollcall
object
summarize a rollcall object
predicted probabilities from an ideal object
analysis of educational testing data and roll call data with IRT models, via Markov
chain Monte Carlo methods
drop user-specified elements from a rollcall object
Predicted Probabilties for GLM Fits
likelihood ratio test for over-dispersion in count data
Table of Actual Outcomes against Predicted Outcomes for discrete
data models
plot seats-votes curves
compute and optionally plot beta HDRs
Applications to a Political Science PhD Program
constrain legislators' ideal points in analysis of roll call data
California Congressional Districts in 2006
convert an object of class ideal to a coda MCMC object
inverse-Gamma distribution
compute various pseduo-R2 measures
Methods for hurdle Objects
votes from the United States Supreme Court, from 1994-1997
drop unanimous votes from rollcall objects and matrices
Testing for the Presence of a Zero Hurdle
Methods for zeroinfl Objects
Monte Carlo estimate of pi (3.14159265...)
convert roll call matrix to series of vectors
cross national rates of trade union density