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  1. Commons Math
  2. MATH-160

Chi-Square Test for Comparing two binned Data Sets

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.2
    • Labels:
      None

      Description

      Current Chi-Square test implementation only supports standard Chi-Square testing with respect to known distribution. We needed testing for comparison of two sample data sets where the distribution can be unknown. For this case the Chi-Square test has to be computed in a different way so that both error contributions (one for each sample data set) are taken into account. See Press et. al, Numerical Recipes, Second Edition, formula 14.3.2.

        Attachments

        1. commons-math.patch
          12 kB
          Matthias Hummel

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            • Assignee:
              Unassigned
              Reporter:
              mhummel Matthias Hummel
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              Dates

              • Created:
                Updated:
                Resolved: