Delete constraints — lp_delete_constraint • lpsugar

Remove named constraints from an lp_problem().

Usage

lp_delete_constraint(.problem, names)

Arguments

.problem: An lp_problem().
names: Characted vector with the names of constraints to be deleted. It is not possible to delete unnamed constraints, so make sure to name them if you plan to delete them later.

Examples

p <- lp_problem() |>
    lp_variable(x) |>
    lp_constraint(
        c1 = x > 0,
        c2 = x < 10
    )

some_condition <- TRUE
if (some_condition) {
    p <- p |> lp_delete_constraint("c1")
}

print(p)
#> <lpsugar Linear Problem>
#> 
#> -- $variables --
#> $x
#> Real scalar 'x'
#> 
#> -- $constraints --
#>  c2 | n = 1 | x < 10