model_info: Exract info from model
In DALEX: moDel Agnostic Language for Exploration and eXplanation

model_info

R Documentation

Exract info from model

Description

This generic function let user extract base information about model. The function returns a named list of class model_info that contain about package of model, version and task type. For wrappers like mlr or caret both, package and wrapper inforamtion are stored

Usage

model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'lm'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'randomForest'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'svm'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'glm'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'lrm'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'glmnet'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'cv.glmnet'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'ranger'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'gbm'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'model_fit'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'train'
model_info(model, is_multiclass = FALSE, ...)

## S3 method for class 'rpart'
model_info(model, is_multiclass = FALSE, ...)

## Default S3 method:
model_info(model, is_multiclass = FALSE, ...)

Arguments

`model`	- model object
`is_multiclass`	- if TRUE and task is classification, then multitask classification is set. Else is omitted. If `model_info` was executed withing `explain` function. DALEX will recognize subtype on it's own.
`...`	- another arguments

Details

Currently supported packages are:

class cv.glmnet and glmnet - models created with glmnet package
class glm - generalized linear models
class lrm - models created with rms package,
class model_fit - models created with parsnip package
class lm - linear models created with stats::lm
class ranger - models created with ranger package
class randomForest - random forest models created with randomForest package
class svm - support vector machines models created with the e1071 package
class train - models created with caret package
class gbm - models created with gbm package

Value

A named list of class model_info

Examples

aps_lm_model4 <- lm(m2.price ~., data = apartments)
model_info(aps_lm_model4)


library("ranger")
model_regr_rf <- ranger::ranger(status~., data = HR, num.trees = 50, probability = TRUE)
model_info(model_regr_rf, is_multiclass = TRUE)

DALEX documentation built on Aug. 8, 2025, 7:34 p.m.