[R] empirical (sandwich) SE estimate in lme ()?

2005-01-14 Thread Na Li
Is it possible to get the empirical (sandwich) S.E. estimates for the fixed effects in lme () (thus allowing possibly correlated errors within the group)? In SAS you can get it by the 'empirical' option to PROC MIXED. Cheers, Michael -- Na (Michael) Li, Ph.D. Division of

RE: [R] empirical (sandwich) SE estimate in lme ()?

2005-01-14 Thread Berton Gunter
. P. Box -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Na Li Sent: Friday, January 14, 2005 8:42 AM To: r-help@stat.math.ethz.ch Subject: [R] empirical (sandwich) SE estimate in lme ()? Is it possible to get the empirical (sandwich) S.E

Re: [R] empirical (sandwich) SE estimate in lme ()?

2005-01-14 Thread A.J. Rossini
PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Na Li Sent: Friday, January 14, 2005 8:42 AM To: r-help@stat.math.ethz.ch Subject: [R] empirical (sandwich) SE estimate in lme ()? Is it possible to get the empirical (sandwich) S.E. estimates for the fixed effects in lme () (thus

Re: [R] empirical (sandwich) SE estimate in lme ()?

2005-01-14 Thread Frank E Harrell Jr
of the statistician is to catalyze the scientific learning process. - George E. P. Box -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Na Li Sent: Friday, January 14, 2005 8:42 AM To: r-help@stat.math.ethz.ch Subject: [R] empirical (sandwich) SE estimate in lme