search for: danardono

To Danardonos concern of splitting time for records with delayed entry: This can fairly easily be accomodated, by simply splitting time in small intervals of time since entry into the study, and then compute the value of the other timescales for each of these e.g.: current.age <- time.from.entry + age.at.e...

Danardono <daodao99 at student.umu.se> wrote: > > While waiting for 2.1, for those who need function[s] for this > survival-splitting business, as I do, this 'survcut' function below > might be helpful. > It is not an elegant nor efficient function but it works, at least for &g...

...499 0 772307 7 601 1 772307 8 689 1 772307 9 801 0 772307 10 884 99 772307 11 961 1 772307 12 80 0 1084506 13 148 0 1084506 14 249 99 1084506 15 344 99 1084506 -Greg > -----Original Message----- > From: Danardono [mailto:daodao99 at student.umu.se] > Sent: Wednesday, September 26, 2001 10:40 AM > To: r-help at stat.math.ethz.ch > Subject: [R] stacking data.frame in a list > > > Hello, > > Given this list object x, > x <- > structure(list("772307&q...

Hi all, This is a potentially very stupid question about MySQL <-> R interaction, but I have not been able to solve it. I'm just trying to connect R to my MySQL databse, and gets this: > library(RMySQL) Loading required package: methods > m <- dbDriver("MySQL") > con <- dbConnect(m,group="testdb") Process R segmentation fault at Wed Oct 16 07:04:30

Hello everyone, I am searching for a covariate selection procedure in a cox model formulated as a counting process. I use intervals, my formula looks like coxph(Surv(start,stop,status)~ x1+x2+...+cluster(id),robust=T) where id is a country code (I study occurence of civil wars from 1962 to 1997). I'd like something not based on p-values, since they have several flaws for this purpose. I turned