Write a GMPL/MathProg model file from a multimod object
Usage
write_gmpl(
model,
file = NULL,
model_dir = model$base_dir,
format_expr = FALSE,
include_solve = TRUE,
export_vars = NULL,
use_table_output = FALSE,
use_folded = NULL,
objective = "cost",
export_data = FALSE,
drop_default_values = FALSE,
INF = 1e+20,
check = TRUE,
resolve_aliases = TRUE,
verbose = FALSE,
export_mps = FALSE,
stop_on_error = TRUE,
...
)Arguments
- model
A
multimodmodel object- file
Output file path (optional, ignored if model_dir is provided)
- model_dir
Optional directory path for organized model structure (creates solvers/gmpl/)
- format_expr
logical; whether to format expressions with line breaks
- include_solve
logical; whether to include solve and end statements
- export_vars
character vector of variable names to export to CSV; if NULL (default), all variables are exported; if FALSE or character(0), no custom export
- use_table_output
logical; whether to add GMPL table statement for output (CSV format); default FALSE
- use_folded
logical; whether to use folded equations/data if available (default: NULL = auto-detect)
- objective
character; name of the objective variable (default: "cost")
- export_data
logical; whether to insert data export code after parameters (default: FALSE)
- drop_default_values
logical; if TRUE with export_data, exclude values that match defaults (default: FALSE)
- INF
numeric; value to use for Inf in parameter defaults (default: 1e20)
- check
logical; if TRUE, run validation checks before writing (default: TRUE)
- resolve_aliases
logical; if TRUE, resolve set aliases to base sets in generated GMPL (default: TRUE)
- verbose
logical; if TRUE, print detailed validation progress (default: FALSE)
- export_mps
logical; if TRUE, also export MPS format file (default: FALSE)
- stop_on_error
logical; if TRUE, stop on validation errors; if FALSE, issue warnings (default: TRUE)
- ...
Additional arguments passed to formatting functions