Re: [R] predict() and heteroskedasticity-robust standard errors

2011-07-25 Thread Achim Zeileis
On Mon, 25 Jul 2011, E Hofstadler wrote: Hello there, I have a linear regression model for which I estimated heteroskedasticity-robust (Huber-White) standard errors using the coeftest function in the lmtest-package. Now I would like to inspect the predicted values of the dependent variable for

[R] predict() and heteroskedasticity-robust standard errors

2011-07-24 Thread E Hofstadler
Hello there, I have a linear regression model for which I estimated heteroskedasticity-robust (Huber-White) standard errors using the coeftest function in the lmtest-package. Now I would like to inspect the predicted values of the dependent variable for particular groups and include a confidence