Package 'ROI.plugin.neos'

Control Variables

Description

The control variables for ROI.plugin.neos.

Arguments

user	a character string giving the username.
email	a character string giving the email address.
dry_run	a logical if TRUE ROI returns the solver call.
wait	a logical indicating whether the R interpreter should wait for the command to finish, or run it asynchronously. If TRUE ROI returns an object of class "neos_job".

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Linear Problem 1

Description

$maximize \ \ 2 x_1 + 4 x_2 + 3 x_3$

$subject \ to:$

$3 x_1 + 4 x_2 + 2 x_3 \leq 60$

$2 x_1 + x_2 + 2 x_3 \leq 40$

$x_1 + 3 x_2 + 2 x_3 \leq 80$

$x_1, x_2, x_3 \geq 0$

Examples

## Not run: 
library(ROI)
mat <- matrix(c(3, 4, 2,
                2, 1, 2,
                1, 3, 2), nrow=3, byrow=TRUE)
x <- OP(objective = c(2, 4, 3),
        constraints = L_constraint(L = mat,
                                   dir = c("<=", "<=", "<="),
                                   rhs = c(60, 40, 80)),
        maximum = TRUE)


opt <- ROI_solve(x, solver = "neos", method = "scip")
opt
## Optimal solution found.
## The objective value is: 7.666667e+01
solution(opt)
## [1]  0.000000  6.666667 16.666667

## End(Not run)

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