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DW-NOMINATE Choice Probabilities

Updated 16 June 2010



Below are files containing the choice probabilities for the Senate and House for Congresses 1 to 111 (through 2009). The format of the files is:

 1.  Congress Number
 2.  ICPSR ID Number:  5 digit code assigned by the ICPSR as 
                       corrected by Howard Rosenthal and myself.
 3.  State Code:  2 digit ICPSR State Code.
 4.  Congressional District Number (0 if Senate)
 5.  State Name
 6.  Party Code:  100 = Dem., 200 = Repub. (See PARTY3.DAT)
 7.  Name
 8.  Roll Call Number
 9.  Actual Choice: 1=Yea, 6=Nay
10.  Predicted Choice: 1=Yea, 6=Nay
11.  Probability of Actual Choice
12.  Probability of Opposite Choice (1 - #11)

Actual and Predicted Choices DW-NOMINATE Scaling of Senates 1 - 111 (2009):
Senate Choices: SENATE_1_111_CHOICES.DAT (2,981,963 Records, 230Meg)

Actual and Predicted Choices DW-NOMINATE Scaling of Houses 1 - 111 (2009):
House Choices: HOUSE_1_111_CHOICES.DAT (12,716,322 Records, 979Meg)

Actual and Predicted Choices DW-NOMINATE Joint Scaling of Houses and Senates 1 - 111 (2009):
House and Senate Choices: HANDS_1_111_CHOICES.DAT (15,698,688 Records, 1,209Meg)


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