Binomial multilevel modelling or Conditional logistic regression

["Noori Akhtar-Danesh" <nakhtardanesh@cogeco.ca>]

Hi all,

Perhaps a simple question for you but very important for me!  Can someone kindly tell me how to do binomial multilevel modeling in S-Plus2000.  I am only aware of lme and nlme routines.  However, I can not define family argument in these routines.  My question may be asked in another way!  How can I run conditional logistic regression in S-Plus?  It is related to a case-control study with binary outcome when each case was matched with two controls.

Thank you for your help in advance,

Noori