LearnerAuditorFitter: Create an AuditorFitter from a Learner

In mcboost: Multi-Calibration Boosting

Create an AuditorFitter from a Learner

Description

Instantiates an AuditorFitter that trains a mlr3::Learner on the data.

Value

AuditorFitter

list with items

• corr: pseudo-correlation between residuals and learner prediction.

• l: the trained learner.

Functions

• TreeAuditorFitter: Learner auditor based on rpart

• RidgeAuditorFitter: Learner auditor based on glmnet

Super class

mcboost::AuditorFitter -> LearnerAuditorFitter

Public fields

learner

LearnerPredictor
Learner used for fitting residuals.

Methods

Public methods

• LearnerAuditorFitter$new()

• LearnerAuditorFitter$fit()

• LearnerAuditorFitter$clone()

Inherited methods

• mcboost::AuditorFitter$fit_to_resid()

---

Method new()

Define an AuditorFitter from a Learner. Available instantiations:
TreeAuditorFitter (rpart) and RidgeAuditorFitter (glmnet).

Usage

LearnerAuditorFitter$new(learner)

Arguments

learner

mlr3::Learner
Regression learner to use.

---

Method fit()

Fit the learner and compute correlation

Usage

LearnerAuditorFitter$fit(data, resid, mask)

Arguments

data

data.table
Features.

resid

numeric
Residuals (of same length as data).

mask

integer
Mask applied to the data. Only used for SubgroupAuditorFitter.

---

Method clone()

The objects of this class are cloneable with this method.

Usage

LearnerAuditorFitter$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Super classes

mcboost::AuditorFitter -> mcboost::LearnerAuditorFitter -> TreeAuditorFitter

Methods

Public methods

• TreeAuditorFitter$new()

• TreeAuditorFitter$clone()

Inherited methods

• mcboost::AuditorFitter$fit_to_resid()
• mcboost::LearnerAuditorFitter$fit()

---

Method new()

Define a AuditorFitter from a rpart learner.

Usage

TreeAuditorFitter$new()

---

Method clone()

The objects of this class are cloneable with this method.

Usage

TreeAuditorFitter$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Super classes

mcboost::AuditorFitter -> mcboost::LearnerAuditorFitter -> RidgeAuditorFitter

Methods

Public methods

• RidgeAuditorFitter$new()

• RidgeAuditorFitter$clone()

Inherited methods

• mcboost::AuditorFitter$fit_to_resid()
• mcboost::LearnerAuditorFitter$fit()

---

Method new()

Define a AuditorFitter from a glmnet learner.

Usage

RidgeAuditorFitter$new()

---

Method clone()

The objects of this class are cloneable with this method.

Usage

RidgeAuditorFitter$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

See Also

Other AuditorFitter: CVLearnerAuditorFitter, SubgroupAuditorFitter, SubpopAuditorFitter

Other AuditorFitter: CVLearnerAuditorFitter, SubgroupAuditorFitter, SubpopAuditorFitter

Other AuditorFitter: CVLearnerAuditorFitter, SubgroupAuditorFitter, SubpopAuditorFitter

mcboost documentation built on Aug. 8, 2025, 6:22 p.m.