search for: bestimmtheitsma

Displaying 1 result from an estimated 1 matches for "bestimmtheitsma".

2008 Apr 24
0
Coefficient of determination in a regression model with AR(1) residuals
...bove" and later: "Values for R^2 can be calculated for any type of predictive model"), I tried to calculate the standard R^2 for the model with AR(1) residuals. However, I ended up with R^2 larger than 1! As mentioned on the German wikipedia page (http://de.wikipedia.org/ wiki/Bestimmtheitsma?), in models fitted using Maximum Likelihood Estimation (MLE), the coefficient of determination does _not_ exist (citation [2008-04-24]: "Bei bestimmten statistischen Modellen, z.B. bei Maximum-Likelihood-Sch?tzungen, existiert das Bestimmtheitsma? R^2 nicht"). Any comments on tha...