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Example Syntax for if - then- and - else Statements
2006 May 17
1
Example Syntax for if - then- and - else Statements
...look like. I am particularly interested in syntax that can be used with the transform function. for example if foo[,1] == 'n', foo[,2] == 4, else foo[,2] == 6 Could someone please share simple example codes with different variants on the theme. thanks. -- Lanre Okusanya, Pharm.D.,BCPS UB/Pfizer Pharmacometrics Fellow University at Buffalo School of Pharmacy and Pharmaceutical Sciences 237 Cooke Hall Buffalo, NY 14260 Email: ooo at buffalo.edu Tel: (716)645-2828 x 275 Fax: (716)645-2886
covariance matrix under null
2005 Aug 25
4
covariance matrix under null
Hello I am fitting a Cox PH model using the function coxph(). Does anyone know how to obtain the estimate of the covariance matrix under the null hypothesis. The function coxph.detail() does not seem to be useful for this purpose. Thanks, KD. [[alternative HTML version deleted]]