Re: [R] Regression w/ interactions

2010-04-15 Thread Frank E Harrell Jr
Michael Dykes wrote: So, am i wrong to /assume /that the reasons my professor is asking us to find a high R^2 & adjusted R^2, low Cp (near what p+1, if i remember correctly), low PRESS, & AIC is b/c the data is randomly generated (b/c he has stated that all of the data for *all *of these hw ass

Re: [R] Regression w/ interactions

2010-04-15 Thread Frank E Harrell Jr
Michael Dykes wrote: I have a project due in my Linear Regression class re: regression on a data set & my professor gave us a hint that there were *exactly *2 sig interactions. The data set is attached. We have to find which predictors are significant, & which 2 interactions are sig. Also, I nedd

[R] Regression w/ interactions

2010-04-14 Thread Michael Dykes
I have a project due in my Linear Regression class re: regression on a data set & my professor gave us a hint that there were *exactly *2 sig interactions. The data set is attached. We have to find which predictors are significant, & which 2 interactions are sig. Also, I nedd some guidance for this