Compare two MPS files and report differences

Reads two MPS files using glpkAPI, extracts all constraint and variable information into data frames, and performs a deep comparison using the compare package. Constraints and variables are sorted by name before comparison, making the comparison order-independent.

Usage

compare_mps(
  file1,
  file2,
  ignoreOrder = TRUE,
  ignoreNameCase = FALSE,
  verbose = FALSE,
  returnData = FALSE,
  compareMatrix = FALSE,
  matrixTolerance = 1e-09,
  matrixVerbose = FALSE,
  ...
)

Arguments

file1

Path to first MPS file (reference/expected)

file2

Path to second MPS file (to compare)

ignoreOrder

Ignore row order in comparison (default TRUE, passed to compare::compare)

ignoreNameCase

Ignore case differences in names (default FALSE, passed to compare::compare)

verbose

Logical; if TRUE, print detailed progress (default: FALSE)

returnData

Logical; if TRUE, include the extracted constraint and variable data frames in the returned list (default: FALSE)

...

Additional arguments passed to compare::compare()

Value

A list with:

identical

Logical, TRUE if models are identical

dimensions

List with nrows, ncols for each model

constraints

List with comparison results for constraints

variables

List with comparison results for variables

objective

Comparison of objective direction

summary

Text summary of differences

See also

compare_lp

Examples

if (FALSE) { # \dontrun{
result <- compare_mps("original.mps", "reproduced.mps")
if (!result$identical) {
  cat(result$summary, "\n")
  # Examine constraint differences
  print(result$constraints$comparison)
}
} # }