dirkschumacher/ompr

Issues

• add dependency matrix to constrains

  #450 opened 9 months ago by RKonstantinR
  19

• Feature Request: adding "macro" functionality to ompr

  #438 opened 2 years ago by sbmack
  1

• How write a constraint once there is a variable used as the index?

  #442 opened a year ago by Arash-72
  2

• Request Feature: Add Vectorized semantics revisited of MILPModel to MIPModel

  #445 opened a year ago by sbmack
  0

• interactions: "Quadratic expression are not supported"

  #444 opened 2 years ago by seschaub
  3

• Limiting Variable Definition By Ordered Pair

  #441 opened 2 years ago by datadrivensupplychain
  9

• Sparse Matrix Constraints with multi-index

  #439 opened 2 years ago by optimizationnoob
  0

• Again, my curious interest is in pre-processing sparse data objects outside of MIPModel if possible. I created a simple sparse supply chain dataframe as an example:

  #437 opened 2 years ago by sbmack
  0

• the cannery problem - vignette enhancement

  #436 opened 2 years ago by brilstl
  0

• Getting error "*.AbstractLinearFunction" when multiplying in objective function

  #435 opened 2 years ago by Alexandertj1996
  1

• Release ompr 1.0.3

  #433 opened 2 years ago by dirkschumacher
  0

• Semi continuous variable

  #424 opened 3 years ago by datadrivensupplychain
  7

• Feature Request Integrated with RAMPL

  #425 opened 3 years ago by harryprince
  1

• Object not found

  #430 opened 2 years ago by justlebeau
  3

• Error in add_variable, object not found

  #427 opened 3 years ago by kstegeman
  1

• Feature Request: GAMS presolver for ompr

  #426 opened 3 years ago by harryprince
  1

• NEOS Server & Async Mode: Error: object of type 'closure' is not subsettable

  #418 opened 3 years ago by datadrivensupplychain
  0

• Solver log not showing up anymore

  #423 opened 3 years ago by multiduplikator
  0

• Binary variable <= Binary matrix: Error in constraint$lhs - constraint$rhs : non-numeric argument to binary operator

  #422 opened 3 years ago by datadrivensupplychain
  4

• Implement Quadratic Constraints/Objectives

  #400 opened 3 years ago by dirkschumacher
  1

• Gurobi Solver- Recent Experience?

  #420 opened 3 years ago by datadrivensupplychain
  1

• "Error: You have definied variables for 1 rows, but you add a constant with N elements"

  #417 opened 3 years ago by datadrivensupplychain
  1

• Error Code "Error: object 'x' not found"

  #410 opened 3 years ago by donojazz
  4

• Define/Use Sparse Matrices

  #330 opened 3 years ago by sbmack
  1

• inequalities evaluated to true/false at build time should still be passed to the solver

  #415 opened 3 years ago by dirkschumacher
  0

• Error in `multiply.LinearTerm()`: ! Quadratic expression are not supported

  #414 opened 3 years ago by Patrikios
  5

• Error in MIPModel construction without %>% piping

  #413 opened 3 years ago by sbmack
  1

• Variable not found for indexes error

  #398 opened 3 years ago by BajczA475
  10

• Release ompr 1.0.2

  #408 opened 3 years ago by dirkschumacher
  1

• Solution ordering in R 3.x

  #404 opened 3 years ago by dkutner
  2

• Investigate the use of S3 double dispatch for algebra

  #399 opened 3 years ago by dirkschumacher
  0

• Release ompr 1.0.0

  #395 opened 3 years ago by dirkschumacher
  0

• Problem with reverse import OTrecod

  #374 opened 3 years ago by dirkschumacher
  0

• Error in ompr::new_solution

  #391 opened 3 years ago by BajczA475
  3

• get_solutions needs to support rlang

  #370 opened 3 years ago by dirkschumacher
  0

• Request regarding index

  #325 opened 4 years ago by nipnipj
  2

• How to set_bounds for a vector of bounds?

  #365 opened 3 years ago by sbmack
  3

• Relicense to MIT

  #353 opened 3 years ago by dirkschumacher
  3

• Error in [[: subscript out of bounds

  #340 opened 3 years ago by sugs01
  2

• mymodel not found

  #346 opened 3 years ago by Lotte10
  8

• Using index "e" fails in sum_expr

  #327 opened 3 years ago by dirkschumacher
  2

• Adding a constraint using sum_expr and an index that is dependent on outside variables.

  #333 opened 3 years ago by sarahjean0659
  0

• ompr::add_constraint(.): Adding a simple char-constraint (?), ERROR: The expression contains a variable that is not part of the model

  #337 opened 3 years ago by Martin-Grub
  2

• Found: workaround for array multiplication in constraints & objfcn using MILPModel

  #347 opened 3 years ago by datadrivensupplychain
  1

• Multiple Knapsack problem

  #341 opened 3 years ago by JGWilson83
  3

• There are variables in your environment that interfere with your defined model variables: x. This can lead to unexpected

  #334 opened 3 years ago by Khaled9015
  3

• MILPModel: constraint matrix * variable vector - revisited

  #328 opened 4 years ago by sbmack
  5

• Check Matrix and R-devel compatibility

  #335 opened 4 years ago by dirkschumacher
  8

• ROIoptimze development discussion space?

  #329 opened 4 years ago by sbmack
  1

• add_constraint with Lead/Lag variables

  #326 opened 4 years ago by jairocer
  2