Data Download

Most of the data in this section are available in two forms -- as a ZIP file created by PKZIP(tm) For Windows or as an ASCII file. The ZIP files can be unzipped with either the old DOS Pkunzip or Windows Pkunzip utilities.

Many of the small datasets including all the D-NOMINATE and W-NOMINATE scores are only posted as text files.

NOMINATE and Related Data

(For an explanation of the differences between the types of NOMINATE data and how the data is organized and formatted, please read this text file.)


  3. Optimal Classification (OC)

  4. Common Space Scores

  5. D-NOMINATE (1986-89)


Miscellaneous Information From the Roll Call Project Database

Roll Call Data

General Data Collections

Movies and Animated Gifs

Site Links

NOMINATE Data, Roll Call Data, and Software
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