Select which solution is returned by the lpSolve accessor methods.
select.solution(lprec, solution)an lpSolve linear program model object.
optional. An integer between 1 and the number of optimal solutions to the model.
a single integer value: the number of optimal solutions.
When the branch and bound algorithm is used (i.e., when there are integer, semi-continuous or SOS variables in the model) there may be multiple optimal solutions.