Bored ...
There couldn't be anything more boring than checking the catastrophic failure of the models and fix them. The percentage is small but the number is quite large for doing it "by hand" ... anyway, there's still some to go.By coincidence David Hogg posted on his science blog about the IMPRS Summer School on Statistical Inferences from Astrophysical Data what gave me "the light" of asking him about how to choose the best model.
The solution he gave me was a "Delta-chi-squared" (Delta-chi-squared = [chi-squared_A + npar_A] - [chi-squared_B + npar_B]) where a large positive number favors model "A", a large negative number favors model "B" and small numbers (either positive or negative) leave things suspicious. The spirit is the same of the F-test. Now I'll implement it and check the results.
Just reminding that actually David is the father of the idea of this blog, that he suggested me 4 year ago ... and the blog "pays back" :-))
Relaxing from the boring hand work finishing renewing my MTB ... it's getting cool!!!
Labels: hi-z morph, life, statistical tests
posted by Cris Da Rocha @ 11:16 PM
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