> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > project.org] On Behalf Of Terry Therneau > Sent: Thursday, September 18, 2008 6:49 AM > To: [EMAIL PROTECTED] > Cc: r-help@r-project.org > Subject: Re: [R] Coxph and loglik converged before variable X
[snip] > b. The actual value of beta that is reported depends on the > convergence > criteria for the routine. So this is one case where different Cox > model > functions can give results that look different. I work in medical > research, and > view these differences as unimportant: if I were to tell you that your > relative > risk of death was exp(11) = 59,774 fold greater than your compatriots, > would the > message be substantially changed for beta of 10 or 12? > There is a statistical literature under the heading of "monotone > likelihood > ratio" that worries about these coefficients and tries to fix them. > Much ado > about nothing, IMHO. Maybe it is just me, but the last line above just begs to have the following lines from "Much Ado About Nothing" added: DON PEDRO What a pretty thing man is when he goes in his doublet and hose and leaves off his wit! CLAUDIO He is then a giant to an ape; but then is an ape a doctor to such a man. [snip] -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] 801.408.8111 ______________________________________________ R-help@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.
