Displaying 1 result from an estimated 1 matches for "unluki".
Did you mean:
unluky
2011 Jun 03
1
Surv(): Stop time must be > start time, NA created
I am writing to get a better handle on a warning I am getting from a coxph analysis I am doing.
I am analysing age of onset of dementia *after* the onset of parkinson disease. My data looks like:
age.park age.dem age.death censor x1 x2 x3 x4
1 76 87 88 0 16 33 E3 E3
2 75 84 84 0 33 36 E3 E3
3 77 81 81 1 NA NA