Density Based Clustering of Applications with Noise (DBSCAN) and Related Algorithms - R package
Mining Association Rules and Frequent Itemsets with R
recommenderlab - Lab for Developing and Testing Recommender Algorithms - R package
R Code to accompany the book Introduction to Data Mining by Tan, Steinbach and Kumar (Code by Michael Hahsler)
Interface for the Basic Local Alignment Search Tool (BLAST) - R-Package