R help - Aug 2011 - Extract p value from coxme object

Dear R experts;

I am trying to extract the p values from a coxme object (package coxme). I
can see the value in the model output, but I wanted to have the result with
a higher number of decimal places.
I have searched the mailing list and followed equivalent suggestions for
nlme/lme objects, but I wasn't successful.

Thanks;

Catarina

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You can look at the code
	coxme:::print.coxme

There you will see that the global test is a chisquare
	   chi1 <- 2*diff(x$loglik[1:2]) 
with x$df[1] degrees of freedom.

 The fixed effects coefficients are found in x$coefficients$fixed, and
the variances are diag(x$var)[-(1:nfrail)].  (The variances for the
random coefficients are first, and then those for the fixed effects).
If there are 5 fixed coefficients, their variance/covariance matrix is
the lower right 5x5 corner of x$var.

Terry Therneau

Cleaning up some old messages, I found this one:

The p-values are not stored in the coxme object. They are calculated on 
the fly when you ask to rpint the object. See
   coxme:::print.coxme
for the code.

Uwe Ligges




On 02.08.2011 17:26, Catarina Miranda wrote:
> Dear R experts;
>
> I am trying to extract the p values from a coxme object (package coxme). I
> can see the value in the model output, but I wanted to have the result with
> a higher number of decimal places.
> I have searched the mailing list and followed equivalent suggestions for
> nlme/lme objects, but I wasn't successful.
>
> Thanks;
>
> Catarina
>
> 	[[alternative HTML version deleted]]
>
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