lpSolveAPI (version 5.5.0.12-3)

get.objective: Get Objective

Description

Retrieve the value of the objective function from a successfully solved lpSolve linear program model object.

Usage

get.objective(lprec)

Arguments

lprec

an lpSolve linear program model object.

Value

• a single numeric value containing the value of the objective function.

References

http://lpsolve.sourceforge.net/5.5/index.htm

Examples

lps.model <- make.lp(0, 3)
xt <- c(6,2,4)
add.constraint(lps.model, xt, "<=", 150)
xt <- c(1,1,6)
add.constraint(lps.model, xt, ">=", 0)
xt <- c(4,5,4)
add.constraint(lps.model, xt, "=", 40)
set.objfn(lps.model, c(-3,-4,-3))

solve(lps.model)
get.objective(lps.model)