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## ROI plugin: alabama
## based the alabama package
make_signature <- function()
ROI_plugin_make_signature( objective = c("L", "Q", "F"),
constraints = c("X", "L", "Q", "F"),
types = c("C"),
bounds = c("X", "V"),
cones = c("X"),
maximum = c(TRUE, FALSE) )
## SOLVER CONTROLS
.add_controls <- function(solver) {
## alabama
ROI_plugin_register_solver_control( solver, "par", "start" )
ROI_plugin_register_solver_control( solver, "trace", "verbose" )
##
## outer loop
##
ROI_plugin_register_solver_control( solver, "control.outer", "X" ) ## initial value for lagrangian parameter
ROI_plugin_register_solver_control( solver, "lam0", "X" ) ## initial value for lagrangian parameter
ROI_plugin_register_solver_control( solver, "sig0", "X" ) ##
ROI_plugin_register_solver_control( solver, "eps", "tol" ) ##
ROI_plugin_register_solver_control( solver, "itmax", "max_iter" ) ##
ROI_plugin_register_solver_control( solver, "method", "method" ) ##
ROI_plugin_register_solver_control( solver, "NMinit", "X" ) ##
ROI_plugin_register_solver_control( solver, "ilack.max", "X" ) ##
ROI_plugin_register_solver_control( solver, "i.scale", "X" ) ##
ROI_plugin_register_solver_control( solver, "e.scale", "X" ) ##
ROI_plugin_register_solver_control( solver, "kkt2.check", "X" ) ##
##
## inner loop
##
ROI_plugin_register_solver_control( solver, "control.optim", "X" )
ROI_plugin_register_solver_control( solver, "dry_run", "X" )
invisible( TRUE )
}
.onLoad <- function( libname, pkgname ) {
## Solver plugin name (based on package name)
if( ! pkgname %in% ROI_registered_solvers() ){
## Register solver methods here.
solver <- "alabama"
## obj: F constr: X types: C bounds: V
ROI_plugin_register_solver_method(
signatures = make_signature(),
solver = solver,
method = getFunction("solve_alabama_auglag",
where = getNamespace(pkgname)) )
.add_status_codes( solver )
.add_controls( solver )
}
}
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