1984 Congressional Voting Records

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This data set includes votes for each of the U.S.
House of Representatives Congressmen on the 16 key
votes identified by the CQA. The CQA lists nine
different types of votes: voted for, paired for,
and announced for (these three simplified to yea),
voted against, paired against, and announced against
(these three simplified to nay), voted present,
voted present to avoid conflict of interest, and
did not vote or otherwise make a position known
(these three simplified to an unknown disposition).

Number of Instances: 435 (267 democrats,
168 republicans)

Number of Attributes: 16 (all Boolean valued)+class

Attribute Information:

• 1. Class Name: 2 (democrat, republican)
• 2. handicapped-infants: 2 (y,n)
• 3. water-project-cost-sharing: 2 (y,n)
• 4. adoption-of-the-budget-resolution: 2 (y,n)
• 5. physician-fee-freeze: 2 (y,n)
• 6. el-salvador-aid: 2 (y,n)
• 7. religious-groups-in-schools: 2 (y,n)
• 8. anti-satellite-test-ban: 2 (y,n)
• 9. aid-to-nicaraguan-contras: 2 (y,n)
• 10. mx-missile: 2 (y,n)
• 11. immigration: 2 (y,n)
• 12. synfuels-corporation-cutback: 2 (y,n)
• 13. education-spending: 2 (y,n)
• 14. superfund-right-to-sue: 2 (y,n)
• 15. crime: 2 (y,n)
• 16. duty-free-exports: 2 (y,n)
• 17. export-administration-act-south-africa: 2 (y,n)

Class Distribution: (2 classes)

• 45.2 percent are democrat
• 54.8 percent are republican

Vista visualization: 20 unseparated items(5%)
* We try to visualize this boolean dataset by normalizing boolean values to 0, 1 and estimating their
Euclidean distances. Although Euclidean distance does not represent the boolean relationship well, for
this dataset we can get a satisfactory visualization.

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