[R] Fixed effects regression and robust regression

[Bert Gunter]

On Tue, May 19, 2015 at 1:23 PM, michael westphal via R-help
<r-help at r-project.org> wrote:

You can't compare them (statistically -- you can of course draw
pictures). Note, from ?rlm:

" Note that the df.residual component is deliberately set to NA to
avoid inappropriate estimation of the residual scale from the residual
mean square by "lm" methods. "

Further questions should probably go to a statistics list like
stats.stackexchange.com, as statistical questions are generally
offtopic here.

Cheers,
Bert



Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374

"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
Clifford Stoll