Ensures that all relevant time-varying parameters (e.g., temperature, SMC coverage)
are extended to match the required number of simulation days by prepending repeated
values from the first year of data.
Usage
extend_time_varying_inputs_to_length(
param_inputs,
days_needed,
days_per_year = 360
)
Arguments
- param_inputs
A named list of model input vectors. Some entries should be time-varying inputs.
- days_needed
Integer specifying the total number of days required for simulation (e.g., n_days).
- days_per_year
Integer number of days per model year (default is 360).
Value
A list of parameter inputs where time-varying entries have been extended (and trimmed) to exactly days_needed days.
Details
The following keys are treated as time-varying: "cov_SMC", "SMC", "decay", "c_R_D", "temp".
These are extended by repeatedly prepending the first year of values until the total length is sufficient.
Non-time-varying keys are returned unchanged.
Examples
inputs <- list(temp = rep(25, 360), constant = 0.1)
extended <- extend_time_varying_inputs_to_length(inputs, days_needed = 720)
length(extended$temp) # should be 720
#> [1] 720