Saturday, 15 September 2012

Qualitative Variables & Stepwise Regression

  • Qualitative variables are non-numeric and are also called dummy variables.
    • For a qualitative variable, there are only two conditions possible
  • Stepwise Regression leads to the most efficient regression equation.
    • Only independent variables with significant regression coefficients are entered into the analysis. Variables are entered in the order in which they increase R^2 the fastetst.

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