R: Nagelkerke's R2 Survival Measure

mlr_measures_surv.nagelk_r2 {mlr3proba} | R Documentation

## Nagelkerke's R2 Survival Measure

### Description

Calls `survAUC::Nagelk()`.

Assumes Cox PH model specification.

### Details

All measures implemented from survAUC should be used with care, we are aware of problems in implementation that sometimes cause fatal errors in R. In future updates these measures will all be re-written and implemented directly in `mlr3proba`.

### Dictionary

This Measure can be instantiated via the dictionary mlr_measures or with the associated sugar function msr():

    MeasureSurvNagelkR2$new()
    mlr_measures$get("surv.nagelk_r2")
    msr("surv.nagelk_r2")

### Meta Information

- Type: `"surv"`

- Range: [0, 1]

- Minimize: `FALSE`

- Required prediction: `lp`

### Super classes

`mlr3::Measure` -> `mlr3proba::MeasureSurv` -> `MeasureSurvNagelkR2`

### Methods

#### Public methods

- `MeasureSurvNagelkR2$new()`

- `MeasureSurvNagelkR2$clone()`

Inherited methods

- `mlr3::Measure$aggregate()`

- `mlr3::Measure$format()`

- `mlr3::Measure$help()`

- `mlr3::Measure$score()`

- `mlr3proba::MeasureSurv$print()`

#### Method `new()`

Creates a new instance of this R6 class.

##### Usage

    MeasureSurvNagelkR2$new()

#### Method `clone()`

The objects of this class are cloneable with this method.

##### Usage

    MeasureSurvNagelkR2$clone(deep = FALSE)

##### Arguments

`deep`

  Whether to make a deep clone.

### References

Nagelkerke, JD N, others (1991). “A note on a general definition of the coefficient of determination.” Biometrika, 78(3), 691–692.

### See Also

Other survival measures: `mlr_measures_surv.calib_alpha`, `mlr_measures_surv.calib_beta`, `mlr_measures_surv.chambless_auc`, `mlr_measures_surv.cindex`, `mlr_measures_surv.dcalib`, `mlr_measures_surv.graf`, `mlr_measures_surv.hung_auc`, `mlr_measures_surv.intlogloss`, `mlr_measures_surv.logloss`, `mlr_measures_surv.mae`, `mlr_measures_surv.mse`, `mlr_measures_surv.oquigley_r2`, `mlr_measures_surv.rmse`, `mlr_measures_surv.schmid`, `mlr_measures_surv.song_auc`, `mlr_measures_surv.song_tnr`, `mlr_measures_surv.song_tpr`, `mlr_measures_surv.uno_auc`, `mlr_measures_surv.uno_tnr`, `mlr_measures_surv.uno_tpr`, `mlr_measures_surv.xu_r2`

Other R2 survival measures: `mlr_measures_surv.oquigley_r2`, `mlr_measures_surv.xu_r2`

Other lp survival measures: `mlr_measures_surv.calib_beta`, `mlr_measures_surv.chambless_auc`, `mlr_measures_surv.hung_auc`, `mlr_measures_surv.oquigley_r2`, `mlr_measures_surv.song_auc`, `mlr_measures_surv.song_tnr`, `mlr_measures_surv.song_tpr`, `mlr_measures_surv.uno_auc`, `mlr_measures_surv.uno_tnr`, `mlr_measures_surv.uno_tpr`, `mlr_measures_surv.xu_r2`

[Package mlr3proba version 0.4.0 Index]