ttime {event} | R Documentation |
ttime(y, id)
y |
Vector of times. |
id |
Vector of corresponding individual identifiers for who had which sequence of times. |
ttime
creates a vector of length sum(y)
of times since
each individual began for use with ehr
.
J.K. Lindsey
bp
, ehr
,
ident
, pp
,
tccov
, tpast
,
tvcov
.
y <- c(5,3,2,4) id <- c(1,1,2,2) itime <- ttime(y, id) itime