eventsMSM: Count number of observed transitions.

In markovMSM: Methods for Checking the Markov Condition in Multi-State Survival Data

Count number of observed transitions.

Description

Given a data set in long format, for instance generated by msprep, and a transition matrix for the multi-state model, this function counts the number of observed transitions in the multi-state model and gives their percentages.

Usage

eventsMSM(data)

Arguments

data	A data frame in long (counting process) format such as the output by prepMSM.

Value

A list containing two tables, the first, called Frequencies, with the number of observed transitions in the multi-state model occurring in msdata, the second, called Proportions, with the corresponding proportions.

Author(s)

Gustavo Soutinho and Luis Meira-Machado.

Examples

library(mstate)
data("ebmt4") 
db_wide <- ebmt4
positions<-list(c(2, 3, 5, 6), c(4, 5, 6), c(4, 5, 6), c(5, 6), c(6), c())
namesStates = c("Tx", "Rec", "AE", "Rec+AE", "Rel", "Death")
trans<-transMatMSM(positions, namesStates)
timesNames = c(NA, "rec", "ae","recae", "rel", "srv")
status=c(NA, "rec.s", "ae.s", "recae.s", "rel.s", "srv.s")
db_long<-prepMSM(data=db_wide, trans, timesNames, status)
eventsMSM(db_long)

markovMSM documentation built on Feb. 16, 2023, 8:34 p.m.