Nothing
make_BILP_signatures <- function()
ROI_plugin_make_signature( objective = c("L"),
constraints = c("X", "L"),
types = c("B", "CB", "IB", "CIB"),
bounds = c("X", "V"),
cones = c("X"),
maximum = c(TRUE, FALSE) )
## SOLVER CONTROLS
.add_controls <- function(solver) {
## lp_solve
ROI_plugin_register_solver_control( solver, "nsol_max", "nsol_max" )
ROI_plugin_register_solver_control( solver, "verbose", "verbose" )
ROI_plugin_register_solver_control( solver, "presolve", "presolve" )
ROI_plugin_register_solver_control( solver, "max_iter", "max_iter" )
ROI_plugin_register_solver_control( solver, "max_time", "max_time" )
ROI_plugin_register_solver_control( solver, "tol", "tol" )
ROI_plugin_register_solver_control( solver, "abs_tol", "abs_tol" )
ROI_plugin_register_solver_control( solver, "rel_tol", "rel_tol" )
ROI_plugin_register_solver_control( solver, "method", "method" )
ROI_plugin_register_solver_control( solver, "start", "start" )
ROI_plugin_register_solver_control( solver, "order", "X" )
invisible( TRUE )
}
.onLoad <- function( libname, pkgname ) {
## Solver plugin name (based on package name)
if( ! pkgname %in% ROI_registered_solvers() ){
## Register solver methods here.
## One can assign several signatures a single solver method
solver <- ROI_plugin_get_solver_name( pkgname )
ROI_plugin_register_solver_method(
signatures = make_BILP_signatures(),
solver = solver,
method = getFunction( "solve_OP", where = getNamespace(pkgname)) )
## Finally, for status code canonicalization add status codes to data base
.add_status_codes()
.add_controls(solver)
}
}
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