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javamathapache-commonsmedian

Get median from number series using Apache Commons Math


Using Apache Commons Math, how do I get the median from a series of numbers?

The Commons Math User Guide says DescriptiveStatistics supports median, yet the JavaDocs for DescriptiveStatistics makes no mention of it. It does mention geometric mean, is this the same thing as median?

I do see getPercentile(double). Is getPercentile(50) the same as median?


Solution

  • DescriptiveStatistics.getPercentile

    The 50th percentile is, by definition, the median.