LPWrapper#

class pyopenms.LPWrapper#

Bases: object

Cython implementation of _LPWrapper

Documentation is available at http://www.openms.de/current_doxygen/html/classOpenMS_1_1LPWrapper.html

__init__()#: Cython signature: void LPWrapper()

Methods

`__init__`	Cython signature: void LPWrapper()
`addColumn`	Cython signature: int addColumn()
`addRow`	Cython signature: int addRow(libcpp_vector[int] row_indices, libcpp_vector[double] row_values, const String & name)
`deleteRow`	Cython signature: void deleteRow(int index) Delete index-th row
`getColumnIndex`	Cython signature: int getColumnIndex(const String & name) Returns index of the column with name
`getColumnLowerBound`	Cython signature: double getColumnLowerBound(int index) Returns column's lower bound
`getColumnName`	Cython signature: String getColumnName(int index) Returns name of the index-th column
`getColumnType`	Cython signature: VariableType getColumnType(int index) Returns column/variable type.
`getColumnUpperBound`	Cython signature: double getColumnUpperBound(int index) Returns column's upper bound
`getColumnValue`	Cython signature: double getColumnValue(int index)
`getElement`	Cython signature: double getElement(int row_index, int column_index) Returns the element
`getMatrixRow`	Cython signature: void getMatrixRow(int idx, libcpp_vector[int] & indexes)
`getNumberOfColumns`	Cython signature: int getNumberOfColumns() Returns number of columns
`getNumberOfNonZeroEntriesInRow`	Cython signature: int getNumberOfNonZeroEntriesInRow(int idx)
`getNumberOfRows`	Cython signature: int getNumberOfRows() Returns number of rows
`getObjective`	Cython signature: double getObjective(int index) Returns objective value for column with index
`getObjectiveSense`	Cython signature: Sense getObjectiveSense() Returns objective sense
`getObjectiveValue`	Cython signature: double getObjectiveValue()
`getRowIndex`	Cython signature: int getRowIndex(const String & name) Returns index of the row with name
`getRowLowerBound`	Cython signature: double getRowLowerBound(int index) Returns row's lower bound
`getRowName`	Cython signature: String getRowName(int index) Sets name of the index-th row
`getRowUpperBound`	Cython signature: double getRowUpperBound(int index) Returns row's upper bound
`getSolver`	Cython signature: SOLVER getSolver() Returns currently active solver
`getStatus`	Cython signature: SolverStatus getStatus()
`readProblem`	Cython signature: void readProblem(String filename, String format_)
`setColumnBounds`	Cython signature: void setColumnBounds(int index, double lower_bound, double upper_bound, LPWrapper_Type type_) Sets column bounds
`setColumnName`	Cython signature: void setColumnName(int index, const String & name) Sets name of the index-th column
`setColumnType`	Cython signature: void setColumnType(int index, VariableType type_) Sets column/variable type.
`setElement`	Cython signature: void setElement(int row_index, int column_index, double value) Sets the element
`setObjective`	Cython signature: void setObjective(int index, double obj_value) Sets objective value for column with index
`setObjectiveSense`	Cython signature: void setObjectiveSense(Sense sense) Sets objective direction
`setRowBounds`	Cython signature: void setRowBounds(int index, double lower_bound, double upper_bound, LPWrapper_Type type_) Sets row bounds
`setRowName`	Cython signature: void setRowName(int index, const String & name) Sets name of the index-th row
`solve`	Cython signature: int solve(SolverParam & solver_param, size_t verbose_level)
`writeProblem`	Cython signature: void writeProblem(const String & filename, WriteFormat format_)

LPWrapper_Type#: alias of pyopenms.pyopenms_8.__LPWrapper_Type

SOLVER#: alias of pyopenms.pyopenms_8.__SOLVER

Sense#: alias of pyopenms.pyopenms_8.__Sense

SolverStatus#: alias of pyopenms.pyopenms_8.__SolverStatus

VariableType#: alias of pyopenms.pyopenms_8.__VariableType

WriteFormat#: alias of pyopenms.pyopenms_8.__WriteFormat

addColumn()#

Cython signature: int addColumn() Adds an empty column to the LP matrix, returns index
Cython signature: int addColumn(libcpp_vector[int] column_indices, libcpp_vector[double] column_values, const String & name) Adds a column to the LP matrix, returns index
Cython signature: int addColumn(libcpp_vector[int] & column_indices, libcpp_vector[double] & column_values, const String & name, double lower_bound, double upper_bound, LPWrapper_Type type_) Adds a column with boundaries to the LP matrix, returns index

addRow()#

Cython signature: int addRow(libcpp_vector[int] row_indices, libcpp_vector[double] row_values, const String & name) Adds a row to the LP matrix, returns index
Cython signature: int addRow(libcpp_vector[int] & row_indices, libcpp_vector[double] & row_values, const String & name, double lower_bound, double upper_bound, LPWrapper_Type type_) Adds a row with boundaries to the LP matrix, returns index

deleteRow()#: Cython signature: void deleteRow(int index) Delete index-th row

getColumnIndex()#: Cython signature: int getColumnIndex(const String & name) Returns index of the column with name

getColumnLowerBound()#: Cython signature: double getColumnLowerBound(int index) Returns column’s lower bound

getColumnName()#: Cython signature: String getColumnName(int index) Returns name of the index-th column

getColumnType()#: Cython signature: VariableType getColumnType(int index) Returns column/variable type.

getColumnUpperBound()#: Cython signature: double getColumnUpperBound(int index) Returns column’s upper bound

getColumnValue()#: Cython signature: double getColumnValue(int index)

getElement()#: Cython signature: double getElement(int row_index, int column_index) Returns the element

getMatrixRow()#: Cython signature: void getMatrixRow(int idx, libcpp_vector[int] & indexes)

getNumberOfColumns()#: Cython signature: int getNumberOfColumns() Returns number of columns

getNumberOfNonZeroEntriesInRow()#: Cython signature: int getNumberOfNonZeroEntriesInRow(int idx)

getNumberOfRows()#: Cython signature: int getNumberOfRows() Returns number of rows

getObjective()#: Cython signature: double getObjective(int index) Returns objective value for column with index

getObjectiveSense()#: Cython signature: Sense getObjectiveSense() Returns objective sense

getObjectiveValue()#: Cython signature: double getObjectiveValue()

getRowIndex()#: Cython signature: int getRowIndex(const String & name) Returns index of the row with name

getRowLowerBound()#: Cython signature: double getRowLowerBound(int index) Returns row’s lower bound

getRowName()#: Cython signature: String getRowName(int index) Sets name of the index-th row

getRowUpperBound()#: Cython signature: double getRowUpperBound(int index) Returns row’s upper bound

getSolver()#: Cython signature: SOLVER getSolver() Returns currently active solver

getStatus()#

Cython signature: SolverStatus getStatus()

Returns: status: 1 - undefined, 2 - integer optimal, 3- integer feasible (no optimality proven), 4- no integer feasible solution

readProblem()#

Cython signature: void readProblem(String filename, String format_)

Parameters

filename – Filename where to store the LP problem
format – LP, MPS or GLPK

setColumnBounds()#: Cython signature: void setColumnBounds(int index, double lower_bound, double upper_bound, LPWrapper_Type type_) Sets column bounds

setColumnName()#: Cython signature: void setColumnName(int index, const String & name) Sets name of the index-th column

setColumnType()#: Cython signature: void setColumnType(int index, VariableType type_) Sets column/variable type.

setElement()#: Cython signature: void setElement(int row_index, int column_index, double value) Sets the element

setObjective()#: Cython signature: void setObjective(int index, double obj_value) Sets objective value for column with index

setObjectiveSense()#: Cython signature: void setObjectiveSense(Sense sense) Sets objective direction

setRowBounds()#: Cython signature: void setRowBounds(int index, double lower_bound, double upper_bound, LPWrapper_Type type_) Sets row bounds

setRowName()#: Cython signature: void setRowName(int index, const String & name) Sets name of the index-th row

solve()#

Cython signature: int solve(SolverParam & solver_param, size_t verbose_level)

Parameters

solver_param – Parameters of the solver introduced by SolverParam
verbose_level – Sets verbose level

Returns

solver dependent

writeProblem()#

Cython signature: void writeProblem(const String & filename, WriteFormat format_)

Parameters

filename – Output filename, if the filename ends with ‘.gz’ it will be compressed
format – MPS-format is supported by GLPK and COIN-OR; LP and GLPK-formats only by GLPK