[R] leverage

[jane murray]

Thank  very much you for your comments.  If you have any suggestions on any 
commands that would work, I'd be very grateful.
Thanks
Jane

--On 11 August 2003 17:28 +0200 Peter Dalgaard BSA 
<p.dalgaard at biostat.ku.dk> wrote:

> Martin Maechler <maechler at stat.math.ethz.ch> writes:
>
>> >>>>> "jane" == jane murray <jmurray at liverpool.ac.uk>
>> >>>>>     on Wed, 06 Aug 2003 09:16:48 +0100 writes:
>>
>>     jane> Hi Can anyone help with the technique of obtaining
>>     jane> leverages from a conditional logistic regression
>>     jane> model?  The code lm.influence does not seem to work
>>     jane> for this data.  Thanks Jane Murray
>>
>> But the generic  influence()  function {new in 1.7.0, from original
>> code of John Fox} has an S3 method, influence.glm(), that should work.
>> If not, that might indicate a bug we'd be interested to hear about.
>
> I suspect you overlooked the "conditional" there. I.e. this is for
> models fitted using clogit() from survival (and I think it has a
> competitor, but I forgot where..) Since this works by hijacking coxph
> it probably cannot work to apply GLM methods on the result.
>
> --
>    O__  ---- Peter Dalgaard             Blegdamsvej 3
>   c/ /'_ --- Dept. of Biostatistics     2200 Cph. N
>  (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
> ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907