Predefined optimization problem
Create a new OptimizationProblem
object.
predefined_optimization_problem(x)
x |
|
The argument to x
must be a list that contains the following
elements:
character
model sense.
integer
number of features in problem.
integer
number of planning units.
integer
row indices for problem matrix.
integer
column indices for problem matrix.
numeric
values for problem matrix.
numeric
objective function values.
numeric
lower bound for decision values.
numeric
upper bound for decision values.
numeric
right-hand side values.
numeric
constraint senses.
character
variable types. These are used to specify
that the decision variables are binary ("B"
) or continuous
("C"
).
character
identifiers for the rows in the problem
matrix.
character
identifiers for the columns in the problem
matrix.
# create list with problem data l <- list(modelsense = "min", number_of_features = 2, number_of_planning_units = 3, number_of_zones = 1, A_i = c(0L, 1L, 0L, 1L, 0L, 1L), A_j = c(0L, 0L, 1L, 1L, 2L, 2L), A_x = c(2, 10, 1, 10, 1, 10), obj = c(1, 2, 2), lb = c(0, 1, 0), ub = c(0, 1, 1), rhs = c(2, 10), compressed_formulation = TRUE, sense = c(">=", ">="), vtype = c("B", "B", "B"), row_ids = c("spp_target", "spp_target"), col_ids = c("pu", "pu", "pu")) # create OptimizationProblem object x <- predefined_optimization_problem(l) # print new object print(x)
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