heemod (version 0.3.0)

define_model: Define a Markov Model

Description

Combine information on parameters, transition matrix and states defined through define_parameters, define_matrix and define_state respectively.

Usage

define_model(..., parameters = define_parameters(),
  transition_matrix = define_matrix())
define_model_(parameters, transition_matrix, states)

Arguments

...

Object generated by define_state.

parameters

Optional. An object generated by define_parameters.

transition_matrix

An object generated by define_matrix.

states

List of states, only used by define_model_ to avoid using ....

Value

• An object of class uneval_model (a list containing the unevaluated parameters, matrix and states).

Details

This function checks whether the objects are compatible in the same model (same state names...).

Examples

param <- define_parameters(
  a = 1,
  b = 4 * markov_cycle,
  c = a + b
)

mat <- define_matrix(
  state_names = c("s1", "s2"),
  1 / c, 1 - 1/ c,
  0, 1
)

s1 <- define_state(
  cost = 234,
  utility = 1
  )
s2 <- define_state(
  cost = 421,
  utility = .5
  )

define_model(
  parameters = param,
  transition_matrix = mat,
  s1 = s1,
  s2 = s2
)