[R] Cox model with multiple events - Proportional Hazards Assumption

Dear all, I'm using the package "survival" for adjusting the Cox model with multiple events (Prentice, Williams and Peterson Model). I have several covariates, some of them are time-dependent. I'm using the function"cox.zph" to check the proportional hazards. Due to the nature of the time-depende

Re: [R] FrailtyHL package does not work

ork with large data sets. Terry Therneau ________ De: Maria Helena Mourino Silva Nunes Enviado: sexta-feira, 14 de Março de 2014 19:02 Para: r-help@r-project.org Assunto: FrailtyHL package does not work Dear all, I want to describe the time interval between ma

[R] FrailtyHL package does not work

Dear all, I want to describe the time interval between mammography screenings as a function of several clinical and demographic variables. For each woman (ID), I have multiple events and each event corresponds to the time interval between two consecutive mammography screenings. Also, women's da

[R] Standardised Pearson residuals

Dear all, I'm using the package "pscl" for adjusting a Zero-Inflated Negative Binomial Regression to my data set. I would like to know if it is possible to compute the standardised Pearson residuals from the output of this package. Thanks in advanced. Best regards, Helena.

[R] Question with RExcel

Dear all, I’m doing some simulation studies in order to compare the estimates (and estimated standard deviations) from the ARMA(2,1) Model with an estimator that I’ve constructed. For carrying out the simulations I created a VBA project within Excel. Now, I’m using the RExcel tool for running th