From the developer: "XLMiner is the only comprehensive data mining package that works as an add-in for Excel. Provides all major datamining techniques: classification (classification trees, discriminant analysis, logistic regression, neural networks, na?ve Bayes classification, k-nearest neighbors); prediction (multiple linear regression with subset selection, k-nearest neighbors, regression trees), affinity analysis (association rules), plus data reduction and exploration (principal components, k-means clustering, hierarchical clustering). Also includes data preparation (partitioning into training, validation and test data sets)."