On Aug 11, 2010, at 6:56 AM, david dav wrote:
Hi,
I would like to extract the coefficients of a logistic regression
(estimates and standard error as well) in lrm as in glm with
summary(fit.glm)$coef
?coef
Try instead:
coef(fit.glm)
?vcov
The accessor function for the covariance matrix is vcov, so se's for
Wald-type tests can be derived:
diag( vcov(fit.glm) )^0.5 # or
sqrt(diag( vcov(fit.glm))
--
David Winsemius, MD
West Hartford, CT
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