Set a piecewise-linear objective function for a variable.
The arguments to this method specify a list of points that define a piecewise-linear objective function for a single variable. Specifically, the and arguments give coordinates for the vertices of the function.
For additional details on piecewise-linear objective functions, refer to this discussion.
var: A Var object that gives the variable whose objective function is being set.
x: The values for the points that define the piecewise-linear function. Must be in non-decreasing order.
y: The values for the points that define the piecewise-linear function.
model.setPWLObj(var, [1, 3, 5], [1, 2, 4])