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  1. Commons Math
  2. MATH-411

Multiple Regression newSampleData methods inconsistently create / omit intercepts

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.0, 2.1
    • 2.2
    • None
    • None

    Description

      The newSampleData(double[], nrows, ncols) method used in the unit tests adds a unitary column to the design matrix, resulting in an intercept term being estimated among the regression parameters. The other newSampleData methods do not do this, forcing users to add the column of "1"s to estimate models with intercept. Behavior should be consistent and users should not have to add the column.

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          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. MATH-409 Multiple Regression API should allow specification of whether or not to estimate intercept term

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              psteitz Phil Steitz
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                Created:
                Updated:
                Resolved: