set.semicont: Set Semicontinuous
In lpSolveAPI: R Interface to 'lp_solve' Version 5.5.2.0

set.semicont

R Documentation

Set Semicontinuous

Description

Set a decision variable as semicontinuous in an lpSolve linear program model object.

Usage

set.semicont(lprec, columns, sc = TRUE)

Arguments

`lprec`	an lpSolve linear program model object.
`columns`	a numeric vector of unique values from the set `{1, ..., n}` (where `n` is the number of decision variables in `lprec`) specifying which variables should be made semicontinuous.
`sc`	a logical value. If `FALSE` the decision variables specified in `columns` will have their `kind` set to `standard`.

Details

Decision variables have both a type and a kind. The type is either real or integer and indicates the type of values the decision variable may take. The kind is one of {standard, semi-continuous, SOS}. Semi-continuous decision variables can take allowed values between their upper and lower bound as well as zero. Please see the link in the references for further details.