Bounds_Accessor_Mutator function

Bounds - Accessor and Mutator Functions

The bounds of a given optimization problem (OP ) can be accessed or mutated via the method 'bounds'.

bounds(x)

## S3 method for class 'OP'
bounds(x)

bounds(x) <- value

Arguments

• x: an object of type 'OP' used to select the method.

• value: an object derived from 'bound'

  ('V_bound') or NULL.

Returns

the extracted bounds object on get and the altered 'OP'

object on set.

Examples

## Not run:

lp_obj <- L_objective(c(1, 2))
lp_con <- L_constraint(c(1, 1), dir="==", rhs=2)
lp_bound <- V_bound(ui=1:2, ub=c(3, 3))
lp <- OP(objective=lp_obj, constraints=lp_con, bounds=lp_bound, maximum=FALSE)
bounds(lp)
x <- ROI_solve(lp)
x$objval
x$solution
bounds(lp) <- V_bound(ui=1:2, ub=c(1, 1))
y <- ROI_solve(lp)
y$objval
y$solution
## End(Not run)