PSPP-BUG: [bug #23567] Standardized regression coefficients reported incorrectly

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?23567>

                 Summary: Standardized regression coefficients reported
incorrectly
                 Project: PSPP
            Submitted by: None
            Submitted on: Saturday 06/14/2008 at 05:45 UTC
                Category: Numerical Errors
                Severity: 5 - Average
                  Status: None
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: None
                  Effort: 0.00

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Details:

Enter data for variables X & Y as:

      X               Y
    ____            ____
    1.00            2.00
    2.00            2.00
    3.00            3.00
    4.00            4.00
    5.00            5.00

The regression output includes unstandardized regression weights (B weights)
of 0.80 and 0.80 for constant and X which is correct.  However, the
standardized/beta weights are reported as .61 and .00 for constant and X which
is nonsense.  In fact, 0.00 (or simply blank) is, by definition, the
standardized coefficient for the constant while 0.61 is the correct beta
weight for X.

So, PSPP reports the regression beta weights wrong.  The weight for the
constant should always be missing or zero (by definition) and the beta weight
currently (0.6.0) shown for the constant should be for X.




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