Re: [R] AIC and goodness of prediction - was: Re: goodness of "prediction" using a model (lm, glm, gam, brt,

2009-09-11 Thread Kingsford Jones
Hi Corrado, Not being familiar with your research goals or data I can't make recommendations, but I can suggest a couple of places to look for information: Frank Harrell's Regression Modeling Strategies and his Design library available on CRAN, and Hastie et al's The Elements of Statistical Learn

[R] AIC and goodness of prediction - was: Re: goodness of "prediction" using a model (lm, glm, gam, brt,

2009-09-10 Thread Corrado
Dear Kingsford, I apologise for breaking the thread, but I thought there were some more people who would be interested. What you propose is what I am using at the moment: the sum of the squares of the residuals, plus variance / stdev. I am not really satisfied. I have also tried using R2, and