[R] bootstrapping Levene's test

2007-02-19 Thread parsons
Hello all, I am low down on the learning curve of R but so far I have had little trouble using most of the packages. However, recently I have run into a wall when it comes to bootstrapping a Levene's test (from the car package) and thought you might be able to help. I have not been able

[R] Survival Analysis Questions

2005-11-22 Thread Lance Parsons
I am currently using the coxph function from R on a microarray dataset. The curve fit is performed using each gene's expression measurements separately. I then get a p-value for each gene, from the Coxph.summary method. Can someone please explain how this is computed and the significance