[R] Survival model (time to event data)
Daniel Malter
daniel at umd.edu
Sat Sep 15 02:24:20 CEST 2007
High all, I would appreciate input about how the following survival model
can be modeled in R and how competing risk models can generally be modeled.
Also I would appreciate hints about resources that you are aware of that
explain the use of survival models in R in greater detail.
The data structure of my data is plotted below. My problem is that I don't
know how to model 4 different events in the same hazard model for which the
hazards are conditional on some other factor.
Conditions:
0. All events are mutually exclusive
1. Either no event, Event1, or one of the Events 2-4 occurs (i.e. events 2-4
are competing)
2. Event1 can only occur if St.Beg=0 (it switches St.End from this period
and St.Beg from the following periods on to 1 until Event4 occurs).
3. Event2-4 can only occur if St.Beg=1
Time St.Beg St.End Event1 Event2 Event3 Event4 Number
1 0 0 0 0 0 0 0
2 0 0 0 0 0 0 0
3 0 1 1 0 0 0 0
4 1 1 0 0 0 0 10
5 1 1 0 1 0 0 10
6 1 1 0 1 0 0 15
7 1 1 0 0 0 0 20
8 1 1 0 0 0 0 20
9 1 1 0 0 1 0 10
10 1 0 0 0 0 1 0
Thanks much for your help,
Daniel
-------------------------
cuncta stricte discussurus
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