Method: Statsample::Regression::Multiple::BaseEngine#r2_adjusted

Defined in:: lib/statsample/regression/multiple/baseengine.rb

#r2_adjusted ⇒ `Object`

R^2 Adjusted. Estimate Population R^2 usign Ezequiel formula. Always lower than sample R^2

Reference:

Leach, L. & Henson, R. (2007). The Use and Impact of Adjusted R2 Effects in Published Regression Research. Multiple Linear Regression Viewpoints, 33(1), 1-11.



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# File 'lib/statsample/regression/multiple/baseengine.rb', line 89

def r2_adjusted
  r2-((1-r2)*@predictors_n).quo(df_e)
end