[R] R package/function for ridge logistic regression

2006-11-04 Thread Zheng Yuan
Hi,

Is there a R function/package which could do ridge regression for 
logistic regression? Thank you.

-- 
Zheng

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[R] How to obtain the estimate of baseline survival function?

2006-11-03 Thread Zheng Yuan
Hi,

If I fit a Cox model using coxph, is there a R function so that I 
could obtain the estimate of baseline survival function? Thank you.

Zheng
-- 
Zheng Yuan
Ph.D student
Department of Biostatistics
University of Michigan
Ann Arbor, MI 48109

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[R] Ridge for logistic regression

2006-11-03 Thread Zheng Yuan
Dear all experts,

Does anyone know if there is a R function which can perform Ridge 
regression for logistic models?

Thank in advance.
Ying Yuan

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