[R] Help understanding lrm function of Design library

[Mark Difford]

Hi Noah,

>> Could someone point me to an online resource where I could learn 
>> more?  (I'm big on trying to teach myself.) [about lrm funcction and the
>> Design library]

Go for the hardcopy, but you could look at Google Books if you are pressed.
There you will find a good preview of the text. Also look at Alzolla and
Harrell's excellent "An Introduction to S and the Hmisc and Design
Libraries" PDF, which you will find on CRAN under "Contributed
Documentation."

Regards, Mark.


Noah Silverman-3 wrote:
> 
> Hi,
> 
> I'm developing an experiment with logistic regression.
> 
> I've come across the lrm function in the Design  library.
> 
> While I understand and can use the basic functionality, there are a ton 
> of options that go beyond my knowledge.
> 
> I've carefully read the help page for lrm, but don't understand many of 
> the arguments and optional return values.
> (penalty, penalty.matrix, strata.penalty, var.penalty, weights)
> 
> Additionally, there are several items returned in the model that I don't 
> understand.
> (Max Derriv, Model L.R, C, Dxy, Gamma, Tau-a, R2, Briar, Wald Z)
> 
> 1) Could someone point me to an online resource where I could learn 
> more?  (I'm big on trying to teach myself.)
> 
> 2) Or, alternately, does anybody want to explain a few things for me?
> 
> Thanks!
> 
> --
> Noah
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> 

-- 
View this message in context: http://www.nabble.com/Help-understanding-lrm-function-of-Design-library-tp25022388p25023794.html
Sent from the R help mailing list archive at Nabble.com.