[R] standard error of Binary logistic regression coefficient.

suggestions will be really appreciated. Kind Regards Bessy -- View this message in context: http://r.789695.n4.nabble.com/standard-error-of-Binary-logistic-regression-coefficient-tp2303716p2303716.html Sent from the R help mailing list archive at Nabble.com

[R] C-index and Cox model

statistic to measure the predictive power, is it a time-dependent value (i.e. do I need to calculate it for each time period?) or we can calculate it as a single value for the whole model ignoring the time? Thank you so much. Bessy -- View this message in context: http://n4.nabble.com/C-index-and-Cox

[R] weighted cox ph model

for tied data are the same. Otherwise it yields the different results but close to the R’s. The formula has been attached with this message already. Could someone give me some hints regarding my formula, please? Any suggestions will be sincerely appreciated. Bessy http://www.nabble.com/file

[R] Apply weights to the Efron Approximation

it. I have attached my four weighted Efron formulas with this message already. Bessy http://www.nabble.com/file/p24410214/Weighted%2BEfron%2BApproximation_Formulas_Examples.pdf Weighted+Efron+Approximation_Formulas_Examples.pdf -- View this message in context: http://www.nabble.com/Apply

Re: [R] Schoenfeld Residuals with tied data

contains two failures at time 25, I had got different results from R's. If I summed the Schoenfeld residuls at a given event time, for example, 25 in my dataset, I cannot get the common results. Does R modified the formula when meeting ties? Thank you so much. Bessy Terry Therneau wrote

[R] Schoenfeld Residuals with tied data

that my results for non-tied data was ok but the results for tied data were different from R's. How does R calculate the Schoenfeld Residuals for tied data? Could someone give me some hints, please? Thank you so much. Bessy http://www.nabble.com/file/p2403/Schoenfeld%2BResiduals.doc Schoenfeld