README.md

In mlr3cluster: Cluster Extension for 'mlr3'

mlr3cluster

Cluster analysis for mlr3

mlr3cluster is an extension package for cluster analysis within the mlr3 ecosystem. It is a successor of clustering capabilities of mlr2.

Installation

Install the last release from CRAN:

install.packages("mlr3cluster")

Install the development version from GitHub:

devtools::install_github("mlr-org/mlr3cluster")

Feature Overview

The current version of mlr3cluster contains:

• A selection of 17 clustering learners that represent a wide variety of clusterers: partitional, hierarchical, fuzzy, etc.
• A selection of 4 performance measures
• One built-in task to get started with clustering

Also, the package is integrated with mlr3viz which enables you to create great visualizations with just one line of code!

Cluster Analysis

Cluster Learners

| ID | Learner | Package | | :--| :------ | :------ | | clust.agnes | Agglomerative Hierarchical Clustering | cluster | | clust.ap | Affinity Propagation Clustering | apcluster | | clust.cmeans | Fuzzy C-Means Clustering | e1071 | | clust.cobweb | Cobweb Clustering Algorithm | RWeka | | clust.dbscan | Density-based Clustering | dbscan | | clust.diana | Divisive Hierarchical Clustering | cluster | | clust.em | Expectation-Maximization Clustering | RWeka | | clust.fanny | Fuzzy Clustering | cluster | | clust.featureless | Simple Featureless Clustering | mlr3cluster | | clust.ff | FarthestFirst Clustering Algorithm | RWeka | | clust.hclust | Agglomerative Hierarchical Clustering | stats | | clust.kkmeans | Kernel K-Means Clustering | kernlab | | clust.kmeans | K-Means Clustering | stats | | clust.MBatchKMeans | Mini Batch K-Means Clustering | ClusterR | | clust.meanshift | Mean Shift Clustering | LPCM | | clust.pam | Clustering Around Medoids | cluster | | clust.SimpleKMeans | K-Means Clustering (WEKA) | RWeka | | clust.xmeans | K-Means with Automatic Determination of k | RWeka |

Cluster Measures

| ID | Measure | Package | | :--| :------ | :------ | | clust.db | Davies-Bouldin Cluster Separation | clusterCrit | | clust.dunn | Dunn index | clusterCrit | | clust.ch | Calinski Harabasz Pseudo F-Statistic | clusterCrit | | clust.silhouette | Rousseeuw's Silhouette Quality Index | clusterCrit | | clust.wss | Within Sum of Squares | clusterCrit |

Example

library(mlr3)
library(mlr3cluster)

task = mlr_tasks$get("usarrests")
learner = mlr_learners$get("clust.kmeans")
learner$train(task)
preds = learner$predict(task = task)

More Resources

Check out the blogpost for a more detailed introduction to the package. Also, mlr3book has a section on clustering.

Future Plans

• Add more learners and measures
• Integrate the package with mlr3pipelines (work in progress)

If you have any questions, feedback or ideas, feel free to open an issue here.

mlr3cluster documentation built on Nov. 2, 2022, 1:08 a.m.