Re: [R] penalized maximum likelihood estimation and logistf

2010-03-09 Thread Ravi Varadhan
aradhan, Ph.D. Assistant Professor, Division of Geriatric Medicine and Gerontology School of Medicine Johns Hopkins University Ph. (410) 502-2619 email: rvarad...@jhmi.edu - Original Message - From: Ravi Varadhan Date: Tuesday, March 9, 2010 12:24 pm Subject: Re: [R] penalized maximum likeliho

Re: [R] penalized maximum likelihood estimation and logistf

2010-03-09 Thread xiaoyan yu
han, Ph.D. > Assistant Professor, > Division of Geriatric Medicine and Gerontology > School of Medicine > Johns Hopkins University > > Ph. (410) 502-2619 > email: rvarad...@jhmi.edu > > > - Original Message - > From: xiaoyan yu > Date: Tuesday, March

Re: [R] penalized maximum likelihood estimation and logistf

2010-03-09 Thread Ravi Varadhan
opkins University Ph. (410) 502-2619 email: rvarad...@jhmi.edu - Original Message - From: xiaoyan yu Date: Tuesday, March 9, 2010 11:26 am Subject: [R] penalized maximum likelihood estimation and logistf To: r-help@r-project.org > Hi, I got two questions and would really appreciate any help f

[R] penalized maximum likelihood estimation and logistf

2010-03-09 Thread xiaoyan yu
Hi, I got two questions and would really appreciate any help from here. First, is the penalized maximum likelihood estimation(Firth Type Estimation) only fit for binary response (0,1 or TRUE, FALSE)? Can it be applied to multinomial logistic regression? If yes, what's the formula for LL and U(beta