assign_parameters: Function to assign the values of nested parameters from the...

In packDAMipd: Decision Analysis Modelling Package with Parameters Estimation Ability from Individual Patient Level Data

Description

Function to assign the values of nested parameters from the parameter list

Usage

assign_parameters(param_list)

Arguments

param_list

list of parameters, can be nested, or can be used the list returned from define_parameters()

Details

The parameter list should be a list of parameters in the form name value pairs. If the name value pairs is given as a string it throws error as in assign_parameters(c("cost_A = 100", "a = 10")) even if you use assign_parameters(define_parameters(c("cost_A = 100","a = 10"))) but this will be ok if you use the below forms assign_list2 <- c(a = 10, cost_A = "a + 100", cost_B = 10) assign_parameters(assign_list2) OR param_list <- define_parameters(a = 10, cost_A = "a + 100", cost_B = 10) assign_list <- assign_parameters(param_list) Also for nested parameters, remember to give the parameters in order so that at run time, the parameters can be evaluated for example, assign_list = define_parameters(cost_A="a+100", a=10) assign_parameters(assign_list) will throw an error, while assign_list = define_parameters( a = 10, cost_A = "a + 100") assign_parameters(assign_list) will successfully assign parameters as the parameters 'a' is visible before the calculation of 'cost_A' Another thing to note is that while using define_parameters, just enumerate them, no need to create as a list by using c() or list function

Value

list of assigned parameters

Examples

param_list <- define_parameters(
  cost_direct_med_A = 1701, cost_comm_care_A = 1055,
  cost_direct_med_B = 1774, cost_comm_care_B = 1278,
  cost_direct_med_C = 6948,
  cost_comm_care_C = 2059, cost_zido = 2456, cost_health_A =
  "cost_direct_med_A + cost_comm_care_A",
  cost_health_B = "cost_direct_med_B + cost_comm_care_B",
  cost_health_C = "cost_direct_med_C + cost_comm_care_C",
  cost_drug = "cost_zido"
)
assign_parameters(param_list)

packDAMipd documentation built on March 3, 2021, 5:07 p.m.