errorLocalizer_mip: Localize errors using a MIP approach.

Description

Localize errors using a MIP approach.

Usage

errorLocalizer_mip(
  E,
  x,
  weight = rep(1, length(x)),
  maxduration = 600L,
  verbose = "neutral",
  lpcontrol = getOption("er.lpcontrol"),
  ...
)

Value

list with solution weight w, logical

adapt stating what to adapt,

x_feasible and the lp problem (an lpExtPtr object)

Arguments

E: an editset, editmatrix, or editarray
x: named numeric with data
weight: numeric with weights
maxduration: number of seconds that is spent on finding a solution
verbose: verbosity argument that will be passed on to solve lpSolveAPI
lpcontrol: named list of arguments that will be passed on to lp.control. maxduration will override lpSolve's timeout argument.
...: other arguments that will be passed on to solve.

Details

errorLocalizer_mip uses E and x to define a mixed integer problem and solves this problem using lpSolveApi. This function can be much faster then errorLocalizer but does not return the degeneracy of a solution. However it does return an bonus: x_feasible, a feasible solution.

References

E. De Jonge and Van der Loo, M. (2012) Error localization as a mixed-integer program in editrules (included with the package)