[R] cox model

I need a R-code for a situation that is well described in the sas help. I would be very grateful for the help! "Time-dependent variables can be used to model the effects of subjects transferring from one treatment group to another. One example of the need for such strategies is the Stanford heart t

[R] cox model

I need a R-code for a situation that is well described in the sas help. I would be very grateful for the help! "Time-dependent variables can be used to model the effects of subjects transferring from one treatment group to another. One example of the need for such strategies is the Stanford heart t

[R] factor conversion to date/time

Hi, I've been trying to convert numbers from an online temperature database into dates and time that R recognizes. I've tried as.Date, as.POSIXlt and strptime the problem is that the database has put a T between the numbers and R will not accept any conversions. currently it sees the date as

[R] NAs introduced by coercion warning?

I'm running cluster analysis on a data frame but when I calculate the distance I get this warning "NAs introduced by coercion". What does this mean? [[alternative HTML version deleted]] __ R-help

[R] distance matrices

i'm working on some distance matrices and i was wondering if there is a way to export the matrices from R to excel. OG thanks [[alternative HTML version deleted]] __ R-help@r-project.org mailing list h

[R] some QCA questions

major thanks for all the information you've already provided for me in existing manuals, R-fora etc. Great work! Greetings, Suzan van der Post [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.e