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    • Recovering a Basic Space from Issue Scales in R 

      Poole, Keith T.; Lewis, Jeffrey B.; Rosenthal, Howard; Lo, James; Carroll, Royce (2016)
      basicspace is an R package that conducts Aldrich-McKelvey and Blackbox scaling to recover estimates of the underlying latent dimensions of issue scale data. We illustrate several applications of the package to survey data ...
    • The Structure of Utility in Spatial Models of Voting 

      Carroll, Royce; Lewis, Jeffrey B.; Lo, James; Poole, Keith T.; Rosenthal, Howard (2013)
      Empirical models of spatial voting allow legislators' locations in a policy or ideological space to be inferred from their roll-call votes. These are typically random utility models where the features of the utility functions ...