Does anybody know of a R package to solve mixed-integer quadratic
optimisations with constraints?
Alternatively is anybody working with an R interface to ILOG CPLEX
which seems to be the 'best' commercial product in this area?
Finally, is there any relationship between the R-project and AMPL - a
modelling language for mathematical programming <www.ampl.com> -
which also originated in Bell Labs?
Regards,
John Marsland
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