Message-ID: <43F4ACC8.60003@vanderbilt.edu>
Date: 2006-02-16T16:48:08Z
From: Frank E Harrell Jr
Subject: how to retrieve robust se in coxph
In-Reply-To: <Pine.LNX.4.64.0602160805100.29019@homer24.u.washington.edu>
Thomas Lumley wrote:
> On Thu, 16 Feb 2006, ronggui wrote:
>
>> see robcov in Design package.
>
>
> No, don't. This is not the same thing at all.
>
> -thomas
Thomas - it is the same thing. -Frank
>
>>
>> 2006/2/16, Lei Liu <ll9f at cms.mail.virginia.edu>:
>>
>>> Hi,
>>>
>>> I am using coxph in simulations and I want to store the "robust se" (or
>>> "se2" in frailty models) for each replicate. Is there a function to
>>> retrieve
>>> it, like vcov() for the variance estimate? Thanks!
>>>
>>> Lei Liu
>>> Assistant Professor
>>> Division of Biostatistics and Epidemiology
>>> Dept. of Public Health Sciences
>>> School of Medicine
>>> University of Virginia
>>>
>>> 3181 Hospital West Complex
>>> Charlottesville, VA 22908-0717
>>>
>>> 1-434-982-3364 (o)
>>> 1-434-806-8086 (c)
>>>
>>> liulei at virginia.edu
>>> ll9f at virginia.edu
>>>
>>> ______________________________________________
>>> R-help at stat.math.ethz.ch mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide!
>>> http://www.R-project.org/posting-guide.html
>>>
>>
>>
>> --
>> Â�Â�Â�ÂÙ¹Â�
>> Deparment of Sociology
>> Fudan University
>>
>>
>
> Thomas Lumley Assoc. Professor, Biostatistics
> tlumley at u.washington.edu University of Washington, Seattle
>
>
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>
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--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University