Deriving Ideal Points

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# Deriving Ideal Points - PowerPoint PPT Presentation

Deriving Ideal Points. Optimal Classification Step1: find optimal cut points Nunn Helms Gore Kerry Dole B-2 N N N Y N Cambodia Y Y N N Y Tower N Y N N Y MLK N Y N N N | B-2. Classification Errors 1.

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## PowerPoint Slideshow about 'Deriving Ideal Points' - alec

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Presentation Transcript
Deriving Ideal Points
• Optimal Classification
• Step1: find optimal cut points

Nunn Helms Gore Kerry Dole

B-2 N N N Y N

Cambodia Y Y N N Y

Tower N Y N N Y

MLK N Y N N N

|

B-2

Classification

Errors

1

Deriving Ideal Points
• Optimal Classification
• Step2: move Senators to Reduce Error

Nunn Helms Dole Gore Kerry

B-2 N N N N Y

Cambodia Y Y Y N N

Tower N Y Y N N

| |

Cambodia B-2

Tower

MLK

Classification

Errors

0

0

1

Deriving Ideal Points
• Optimal Classification
• Repeat Step1: find optimal cut points.

Helms Dole Nunn Gore Kerry

B-2 N N N N Y

Cambodia Y Y Y N N

Tower Y Y N N N

MLK Y N N N N

| |

Cambodia B-2

Tower

MLK

Classification

Errors

0

1

0

1

Deriving Ideal Points
• Optimal Classification
• Repeat Step1: find optimal cut points.

Helms Dole Nunn Gore Kerry

B-2 N N N N Y

Cambodia Y Y Y N N

Tower Y Y N N N

MLK Y N N N N

| | |

Cambodia B-2

Tower

MLK

Classification

Errors

0

0

0

1