Dear R-help mailing list,
I have this problem, I have a joint longitudinal and survival data of the form
say
ID Time Failuretime Censoringind longitudinalmeasure
1 0 35 0 123
1 10 35 0 120
1 25 35 1 123
2 0 23 0 100
2 10 23 0 111
I wish to create a new dataset such that only the first measurement is included.
Also, i will appreciate if there is a function that i could call to do this
because I will be applying it too in a simulation settings.
Thank you for your time.
James.
[[alternative HTML version deleted]]
______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
