Re: Methodology development: Open vs. Proprietary

2000-10-16 Thread bmccullo
The question here is twofold. First, what algorithm does the package implement? I have seen numerous instances of packages claiming to offer ARIMA, EM, or GARCH procedures, but the packages provide no detail on the algorithm. Without these details, the procedure is a black box. He who trusts a

datasets w/equal R^2???

2000-09-20 Thread bmccullo
There is an introductory example of two datasets with equal R^2 (and possibly with equal coefficients?) but with markedly different residuals. I can't for the life of me remember the author's name that is associated with these data, or where to find them. Any help would be appreciated. Bruce