pivot - Documentation

The pivot module provides functions to perform pivoting of the tableau.

Source:

pivot.js, line 1

Methods

(inner) getPivot(model, variables, basicVariables, nonBasicVariables, type) → {Object|string}

Source:

pivot.js, line 8

Determines the appropriate pivot row and column, or if the tableau is in a final state whether the result is one of ['solved' | 'multiple solutions' | 'unbounded'].

Parameters:

Name	Type	Description
`model`	Array	A two-dimensional array of numbers representing the current simplex tableau.
`variables`	Array	An array of strings representing the variables of the tableau.
`basicVariables`	Array	An array of strings representing the basic variables of the tableau.
`nonBasicVariables`	Array	An array of strings representing the variables of the tableau.
`type`	string	The type of optimization ['min' \| 'max'].

Returns:

Returns an object with the pivot row and column indices, unless no further pivoting is possible (e.g., all values in the bottom from are >= 0) either ['solved' | 'multiple solutions' | 'unbounded'].

Type: Object | string

(inner) pivotModel(model, pivot) → {Array}

Source:

pivot.js, line 78

Performs the actual pivoting of the tableau.

Parameters:

Name	Type	Description
`model`	Array	A two-dimensional array of numbers representing the current simplex tableau.
`pivot`	Object	An object with the pivot row and column indices.

Returns:

The pivoted model.

Type: Array