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Create Index Mapping for Model Variables

Source: R/inference_aux_functions.R
index.Rd

This function creates a list of indices for different model variables, organizing them into run and state categories based on the provided info.

Usage

index(info)

Arguments

info

A list containing index information, typically provided from a model setup. It must include info$index$... entries for each variable named below.

Value

A list with two named elements:

  • run: Named integer vector of indices for running the model (monthly and weekly incidence, prevalence, and rates)

  • state: Integer vector of state indices, in a predefined order matching model state variables.

Examples

# Create a dummy info object with index entries
info <- list(
  index = as.list(setNames(seq_along(c(
    "month_inc_C", "month_inc_A", "month_inc_total",
    "wk_inc_C",   "wk_inc_A",    "wk_inc_total",
    "prev_C_2",   "prev_A_2",    "prev_C_1",
    "prev_A_1",   "r_C",         "r_A"
  )),
  paste0("index$", c(
    "month_inc_C", "month_inc_A", "month_inc_total",
    "wk_inc_C",   "wk_inc_A",    "wk_inc_total",
    "prev_C_2",   "prev_A_2",    "prev_C_1",
    "prev_A_1",   "r_C",         "r_A"
  ))))
)

# Extract mapping
model_indices <- index(info)
str(model_indices)
#> List of 2
#>  $ run  : NULL
#>  $ state: NULL