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Potential bug in Gurobi 8.0.0 #78
I think I've found a potential bug in Gurobi 8.0.0, wherein a problem with binary decision variables resulted in a solution that allocated 0.9999994 of a planning unit to a management zone. I have attached an R script and a Gurobi model file necessary to reproduce the potential bug (reprex.zip), and copied in my session information below. I have posted a question to the Gurobi google groups page to clarify if this is indeed a bug (currently awaiting moderation), and will post any updates here. Until this potential bug has been resolved, I would not recommend using Gurobi 8.0.0 with the prioritizr R package.
For those interested, the message I posted to the Gurobi Google Groups can be viewed here: https://groups.google.com/forum/#!topic/gurobi/zDtdl0EEAFU