[R] How to extract se(coef) from cph?

[David Winsemius]

On Aug 5, 2010, at 4:03 PM, Biau David wrote:

> Hello,
>
> I am modeling some survival data wih cph (Design). I have modeled a  
> predictor
> which showed non linear effect with restricted cubic splines. I  
> would like to
> retrieve the se(coef) for other, linear, predictors.

The cph object has a "var". The vcov function is an extractor  
function. You would probably be using something like:

diag(vcov(fit))^(1/2)

> This is just to make nice
> LateX tables automatically.

Are you sure Frank has not already programed that for you somewhere?  
Perhaps latex.cph?

> I have the coefficients with coef().
>
> How do I do that?
>
> Thanks,
>
> David Biau.
>

-- 

David Winsemius, MD
West Hartford, CT