This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
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Exploratory Data Analysis
Mathematica efficiently implements state-of-the-art data classification algorithms, allowing you to search for nearest neighbors and do cluster analysis on large datasets.
BinCounts count the number of elements that lie in bins
BinLists  ▪ Tally  ▪ Union  ▪ Commonest  ▪ Quantile
    
FindClusters find clusters in numerical, discrete and string data
Nearest find nearest neighbors in any space of data
    
Cases, Count list, count elements matching a pattern
Split split data into runs
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