Hello,
I'm new to R and I'm trying to define new quite simple variable but I'm
struggling with R syntax (when coming to dates) for a while and still
getting <errors> on it.
I would be very grateful if someone could help me with this, to be able to
move on.
I have the following variables:
- Transplant.date
- Faildate
- Death.date
The new variable Time should do the following thing:
Time <-
If Not IsNull(<Faildate>) Then DaysBetween(<transplant date> ,<Faildate>)
Else If IsNull(<Faildate>) And Not IsNull(<Death date>) Then
DaysBetween(<transplant date> ,<Death date>) Else If IsNull(<Faildate>) And
IsNull(<Death date>) Then DaysBetween(<transplant date> ,CurrentDate())
Thank you very much!!
Laura
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