ROI: Bounds_Accessor_Mutator – R documentation

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Documentation

ROI

Bounds_Accessor_Mutator

Bounds - Accessor and Mutator Functions

Description

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

Usage

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`.

Value

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)

ROI

R Optimization Infrastructure

v1.0-0

GPL-3

Authors

Kurt Hornik [aut], David Meyer [aut], Florian Schwendinger [aut], Stefan Theussl [aut, cre], Diethelm Wuertz [ctb]

Initial release