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inst/HiGHS/docs/src/structures/classes/HighsIis.md
In Uno: R Interface to the 'Uno' Nonlinear Optimization Solver
HighsIis
Irreducible infeasibility system (IIS) data are communicated via an instance of the HighsIis class.
valid_: The data in the HighsIis instance is validstrategy_: The IIS strategy usedcol_index_: The indices of model columns in the IISrow_index_: The indices of model rows in the IIScol_bound_: The bounds on each column that define the IISrow_bound_: The bounds on each row that define the IIScol_status_: Indicates whether a column in the model is in an IIS, may be in an IIS, or is not in an IISrow_status_: Indicates whether a row in the model is in an IIS, may be in an IIS, or is not in an IISinfo_: Data on the time and number of simplex iterations required to form the IISmodel_: A HighsModel consisting of the variables, constraints and bounds in the IIS. Currently only its HighsLp instance is relevant
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Uno documentation built on Aug. 30, 2026, 5:07 p.m.
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HighsIis
Irreducible infeasibility system (IIS) data are communicated via an instance of the HighsIis class.
valid_: The data in theHighsIisinstance is validstrategy_: The IIS strategy usedcol_index_: The indices of model columns in the IISrow_index_: The indices of model rows in the IIScol_bound_: The bounds on each column that define the IISrow_bound_: The bounds on each row that define the IIScol_status_: Indicates whether a column in the model is in an IIS, may be in an IIS, or is not in an IISrow_status_: Indicates whether a row in the model is in an IIS, may be in an IIS, or is not in an IISinfo_: Data on the time and number of simplex iterations required to form the IISmodel_: A HighsModel consisting of the variables, constraints and bounds in the IIS. Currently only its HighsLp instance is relevant
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