Create Solver Options

Constructs a structured list of solver options for use with psolve and problem_data. Known parameters are sorted into named slots; solver-specific parameters are collected in $solver_specific.

Usage

solver_opts(
  use_quad_obj = TRUE,
  feastol = NULL,
  reltol = NULL,
  abstol = NULL,
  num_iter = NULL,
  ...
)

Arguments

use_quad_obj

Logical. If TRUE (default), quadratic objectives use the QP matrix path. If FALSE, forces conic decomposition via quad_form_canon.

feastol

Feasibility tolerance (solver-agnostic). Translated to solver-native name by internal mapping. NULL uses solver default.

reltol

Relative tolerance. NULL uses solver default.

abstol

Absolute tolerance. NULL uses solver default.

num_iter

Maximum iterations. NULL uses solver default.

...

Solver-specific parameters passed directly to the solver (e.g., eps_abs, scip_params, mosek_params).

Value

A named list with class "solver_opts".

Examples

solver_opts(feastol = 1e-6)
#> $use_quad_obj
#> [1] TRUE
#> 
#> $feastol
#> [1] 1e-06
#> 
#> $reltol
#> NULL
#> 
#> $abstol
#> NULL
#> 
#> $num_iter
#> NULL
#> 
#> $solver_specific
#> list()
#> 
#> attr(,"class")
#> [1] "solver_opts"
solver_opts(use_quad_obj = FALSE, eps_abs = 1e-7)
#> $use_quad_obj
#> [1] FALSE
#> 
#> $feastol
#> NULL
#> 
#> $reltol
#> NULL
#> 
#> $abstol
#> NULL
#> 
#> $num_iter
#> NULL
#> 
#> $solver_specific
#> $solver_specific$eps_abs
#> [1] 1e-07
#> 
#> 
#> attr(,"class")
#> [1] "solver_opts"
solver_opts(scip_params = list("limits/time" = 10))
#> $use_quad_obj
#> [1] TRUE
#> 
#> $feastol
#> NULL
#> 
#> $reltol
#> NULL
#> 
#> $abstol
#> NULL
#> 
#> $num_iter
#> NULL
#> 
#> $solver_specific
#> $solver_specific$scip_params
#> $solver_specific$scip_params$`limits/time`
#> [1] 10
#> 
#> 
#> 
#> attr(,"class")
#> [1] "solver_opts"