Re: [R] R package for bootstrapping (comparing two quadratic regression models)

Thanks Jean. Y1 = observed value Y2= estimated value Elaine On Mon, May 6, 2013 at 9:22 PM, Adams, Jean wrote: > Elaine, > > I suggest that you consult with a statistician to see if it even makes > sense to compare the two models you describe. The first model makes sense > to me, the second o

Re: [R] R package for bootstrapping (comparing two quadratic regression models)

Elaine, I suggest that you consult with a statistician to see if it even makes sense to compare the two models you describe. The first model makes sense to me, the second one does not. Isn't y2 in the second equation equal to the estimated y1 from the first equation? You need to talk with someo

[R] R package for bootstrapping (comparing two quadratic regression models)

Hello , I want to compare two quadratic regression models with non-parametric bootstrap. However, I do not know which R package can serve the purpose, such as boot, rms, or bootstrap, DeltaR. Please kindly advise and thank you. Elaine The two quadratic regression models are y1=a1x^2+b1x+c1 y1=