View source: R/model_cooksdistance.R

model_cooksdistance | R Documentation |

Calculates Cook's distances for each observation.
Please, note that it will work only for functions with specified `update`

method.

```
model_cooksdistance(object)
observationInfluence(object)
```

`object` |
An object of class |

An object of the class `auditor_model_cooksdistance`

.

Cook, R. Dennis (1977). "Detection of Influential Observations in Linear Regression". doi:10.2307/1268249.

```
data(titanic_imputed, package = "DALEX")
# fit a model
model_glm <- glm(survived ~ ., family = binomial, data = titanic_imputed)
# use DALEX package to wrap up a model into explainer
glm_audit <- audit(model_glm,
data = titanic_imputed,
y = titanic_imputed$survived)
# validate a model with auditor
mc <- model_cooksdistance(glm_audit)
mc
plot(mc)
```

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