Generates a list of scenarios by expanding combinations of regular parameters and preserving grouped parameters that must vary together.
scenario_list(..., each = 1)Named arguments defining parameters. Arguments may be regular
vectors or grouped_params objects created with grouped.
Integer representing the number of replications for each scenario or set of parameters. Defaults to 1.
A list of scenarios, where each element is a named vector of parameter
values with an added element scenario giving the scenario index.
grouped for creating grouped parameter objects.
# Regular parameters
s1 <- scenario_list(a = 1:2, b = c("x", "y"))
# Grouped parameters
g <- grouped(x = 1:2, y = c(10, 20))
s2 <- scenario_list(a = c("low", "high"), g, each = 3)
# Inspect first few scenarios
head(s1)
#> [[1]]
#> a b scenario
#> "1" "x" "1"
#>
#> [[2]]
#> a b scenario
#> "2" "x" "2"
#>
#> [[3]]
#> a b scenario
#> "1" "y" "3"
#>
#> [[4]]
#> a b scenario
#> "2" "y" "4"
#>
head(s2)
#> [[1]]
#> a x y scenario
#> "low" "1" "10" "1"
#>
#> [[2]]
#> a x y scenario
#> "low" "1" "10" "1"
#>
#> [[3]]
#> a x y scenario
#> "low" "1" "10" "1"
#>
#> [[4]]
#> a x y scenario
#> "high" "1" "10" "2"
#>
#> [[5]]
#> a x y scenario
#> "high" "1" "10" "2"
#>
#> [[6]]
#> a x y scenario
#> "high" "1" "10" "2"
#>