interface

[adibender]

before a major rewrite, we should once more think more generally about the interface:

• [ ] right-censored data
• [ ] left-truncation
• [ ] interval-censoring
• [ ] start-stop notation
• [ ] longitudinal data/time-dependent covariates
• [ ] recurrent events (need to specify id), maybe look at https://github.com/wenjie2wang/reda
• [ ] competing risks
• [ ] multistate models (we should be able to use a lot from https://www.jstatsoft.org/article/view/v038i06)

  library(Epi)
  data("ebmt3", package = "mstate")
  bmt <- Lexis(exit = list(tft = rfstime/365.25),
  exit.status = factor(rfsstat, labels = c("Tx", "RD")), data = ebmt3)
  plot(brmt)

  We need some way to specify a graph. For example, figure below from "Using Lexis Objects for Multi-State Models in R":

How to do this using formula specifications? Or go different route?

# using Formula package? 
form = RD ~ Tx| PR~Tx| RD ~PR ~ lin_pred1|lin_pred2|lin_pred3

[adibender]

maybe its best to create a set of input - output data set, which would make it easier to think about the interface