search for: xenobiotics

Displaying 2 results from an estimated 2 matches for "xenobiotics".

Problem with by(... , median)
2008 Jun 10
1
Problem with by(... , median)
...e, and it should be changed to work in the same way as mean, summary or sd options. Nevertheless, accepting the reality, I have a question to all: how to obtain the by-subject medians of factors in such dataset? Thanks in advance, -- Michal J. Figurski HUP, Pathology & Laboratory Medicine Xenobiotics Toxicokinetics Research Laboratory 3400 Spruce St. 7 Maloney Philadelphia, PA 19104
Coefficients of Logistic Regression from bootstrap - how to get them?
2008 Jul 21
5
Coefficients of Logistic Regression from bootstrap - how to get them?
...e is the optimized LR equation. I would appreciate any help on how to extract the LR equation coefficients from any of these bootstrap functions, in the same form as given by 'glm' or 'lrm'. Many thanks in advance! -- Michal J. Figurski HUP, Pathology & Laboratory Medicine Xenobiotics Toxicokinetics Research Laboratory 3400 Spruce St. 7 Maloney Philadelphia, PA 19104 tel. (215) 662-3413