search for: bereket

Hi I am using Cox regression to identify at risk groups. How can I get the C-index in R? Thanks, Bereket <'r-help@stat.math.ethz.ch'> [[alternative HTML version deleted]]

...errors are autocorrelated. And then I tried to use the gls function to accomodate for the autocorrelated errors. My question is how do I know what ARMA process (order) to use in the gls function? Or is there any other way to do the time series regression in R? I highly appreciate your help. Thanks, Bereket [[alternative HTML version deleted]]

...expr.y:155: invalid @-construct ast_expr.y:155: $. is invalid ast_expr.y:155: invalid @-construct ast_expr.y:155: $. is invalid ast_expr.y:155: invalid @-construct ast_expr.y:155: $. is invalid make: *** [ast_expr.c] Error 1 ______________________________________ Any help is apreciated. Cheers, Bereket L. --------------------------------- Start your day with Yahoo! - make it your home page -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050719/13077488/attachment.htm