Partitioning Around Medoids Cluster Learner

A LearnerClust for PAM clustering implemented in cluster::pam(). cluster::pam() doesn't have a default value for the number of clusters. Therefore, the k parameter which correponds to the number of clusters here is set to 2 by default. The predict method uses clue::cl_predict() to compute the cluster memberships for new data.

Dictionary

This Learner can be instantiated via the dictionary mlr_learners or with the associated sugar function lrn():

mlr_learners$get("clust.pam")
lrn("clust.pam")

Super classes

mlr3::Learner -> mlr3cluster::LearnerClust -> LearnerClustPAM

Methods

Public methods

• LearnerClustPAM$new()

• LearnerClustPAM$clone()

Inherited methods

• mlr3::Learner$format()

• mlr3::Learner$help()

• mlr3::Learner$predict()

• mlr3::Learner$predict_newdata()

• mlr3::Learner$print()

• mlr3::Learner$reset()

• mlr3::Learner$train()

---

Method new()

Creates a new instance of this R6 class.

Usage

LearnerClustPAM$new()

---

Method clone()

The objects of this class are cloneable with this method.

Usage

LearnerClustPAM$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

learner = mlr3::lrn("clust.pam")
print(learner)
#> <LearnerClustPAM:clust.pam>
#> * Model: -
#> * Parameters: k=2
#> * Packages: cluster
#> * Predict Type: partition
#> * Feature types: logical, integer, numeric
#> * Properties: complete, exclusive, partitional

# available parameters:
learner$param_set$ids()
#> [1] "k"         "metric"    "medoids"   "stand"     "do.swap"   "pamonce"  
#> [7] "trace.lev"