Cooksd: Difference between revisions
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imported>Scott (Created page with "===Purpose=== ===Synopsis=== ===Description=== ====Inputs==== * '''model''' = ====Outputs==== ===See Also=== plotscores") |
imported>Benjamin No edit summary |
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===Purpose=== | ===Purpose=== | ||
Calculates Cooks Distance of samples for a regression model. | |||
===Synopsis=== | ===Synopsis=== | ||
:distances = plotscores(model) | |||
===Description=== | ===Description=== | ||
Cooks distance measures how much the model would change if a given sample is left out. | |||
* Distance > 0.5: ith sample may be influential and may be worthy of further investigation. | |||
* Distance > 1: ith sample is quite likely to be influential. | |||
====Inputs==== | ====Inputs==== | ||
* '''model''' = | * '''model''' = a standard model structure. | ||
('''Note:''' Currently only PLS models are supported.) | |||
====Outputs==== | ====Outputs==== | ||
* '''distances''' an m-by-1 vector of the calculated Cooks distances for each sample. | |||
===See Also=== | ===See Also=== | ||
[[plotscores]] | [[plotscores]], [[leverag]], [[figmerit]], [[pls]] | ||
Revision as of 12:01, 15 August 2017
Purpose
Calculates Cooks Distance of samples for a regression model.
Synopsis
- distances = plotscores(model)
Description
Cooks distance measures how much the model would change if a given sample is left out.
- Distance > 0.5: ith sample may be influential and may be worthy of further investigation.
- Distance > 1: ith sample is quite likely to be influential.
Inputs
- model = a standard model structure.
(Note: Currently only PLS models are supported.)
Outputs
- distances an m-by-1 vector of the calculated Cooks distances for each sample.