[R] lpSolve and mixed signs

Martin Maechler maechler at stat.math.ethz.ch
Wed Nov 15 16:44:14 CET 2006

>>>>> "Erin" == Erin Hodgess <hodgess at gator.dt.uh.edu>
>>>>>     on Tue, 14 Nov 2006 17:30:11 -0600 writes:

    Erin> Hi R People:
    Erin> If you have a linear programming problem in which
    Erin> some of the constraints have the "<=", some
    Erin> have ">=" and some have "=", all in the same problem,
    Erin> should the solver work?

Yes, I think it should. But ...

    Erin> I'm having trouble with that.  Any help much appreciated!

you haven't done as the posting guide asks....

    Erin> Sincerely,
    Erin> Erin Hodgess

    Erin> ______________________________________________
    Erin> R-help at stat.math.ethz.ch mailing list
    Erin> https://stat.ethz.ch/mailman/listinfo/r-help
    Erin> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
    Erin> and provide commented, minimal, self-contained, reproducible code.
.. please ..


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