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http://weka.wikispaces.com/How+are+packages+structured+for+the+package+management+system%3F
scatterPlot3D
scatterPlot3D is a new package for 3.7.2 that adds a 3D scatter plot visualization to the Explorer. It requires Java 3D to be installed before use.
massiveOnlineAnalysis
massiveOnlineAnalysis is another new package for 3.7.2 that adds the data stream learning techniques of the MOA tool to Weka. MOA includes incremental learning algorithms that can process (potentially) infinite amounts of data. The user has the option to specify bounds on memory consumption by a learning technique. Algorithms such as Hoeffding trees, Hoeffding trees with naive Bayes models at the leaves, Hoeffding option trees, bagging, boosting and adaptive variants thereof are available. General information on handling large data sets with Weka can be found at :the Handling Large Data Sets with Weka page.
associationRulesVisualizer
Another new package for 3.7.2 that adds a 3D visualization of association rules to Associations panel of the Explorer. Requires Java 3D to be installed.
gridSearch
GridSearch (now in a package called "gridSearch") is now multi-threaded to take advantange of multi-core machines.
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