[R] marginal HR in coxph() model with interaction

2012-04-10 Thread Reinhard Seifert
Dear community, I have a question regarding the standard error of marginal hazard ratio estimates from a cox proportional hazard model with an interaction term. I have to dichotomous variables ADMA and ALA (both low/high) where I have divided the continuous variables at a certain level. I am

[R] mgcv 1.7-12 crashes R

2011-12-16 Thread Reinhard Seifert
Dear community, I encountered a very disturbing phenomenon today: When I try to fit any gam() with mgcv R aborts. I could not find any post regarding this in google, which mades in even more strange. I am using the latest Ubuntu, latest R and latest mgcv everything up to date. The crash occured