ageqb: Check if event time is larger/equal than other event time
Description
Function which takes as input a vector a with event times
and a vector b with event times and checks whether each entry in a is
larger or equal than the entries in b.
Usage
ageqb(a, b)
Value
Matrix of size (length(a) * length(b)) with binary values indicating
whether the event times in a are larger than the event times in b