ColossusPoisSurv
assigns and interprets interval columns for poisson model.
This functions is called using the arguments for Poisson or Poisson_Strata in the
right-hand side of the formula. Uses an person-year column, number of events, and
any strata columns. The first two are expected to be in order or named: pyr and event.
Anything beyond the event name is assumed to be strata if Poisson_Strata is used.
See also
Other Formula Interpretation:
ColossusCoxSurv()
,
ColossusLogitSurv()
,
get_form()
,
get_form_joint()