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anp
2013 Apr 14
1
Model selection: On the use of the coefficient determination(R2) versus the frequenstist (AIC) and Bayesian (AIC) approaches
Dear all,
I'm modeling growth curve of some ecosystems with respect to their rainfall-productivity relationship using a simple linear regression (ANPP(t)=a+b*Rain(t)) and a modified version of the Brody Model ANPP(t)=a*(1-exp(-b*rain(t)))
I would like to know why the "best model" is function of the criteria that I use (maximizing the fit using R2 or testing the Null hypothesis with BIC/AIC).
To compute the R2, I used the following form...
2008 Feb 28
14
Upgrading to 7.0 - stupid requirements
In http://www.freebsd.org/releases/7.0R/announce.html says
Updating Existing Systems
> An upgrade of any existing system to FreeBSD 7.0-RELEASE constitutes
> a major version upgrade, so no matter which method you use to update
> an older system you should reinstall any ports you have installed on
> the machine. This will avoid binaries becoming linked to inconsistent
> sets