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User type definition Description Definition of a user type within a model to simplify the declaration of identical data structures Further explanation of this example: 'Mosel User Guide', Section 8.7 User types
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Data Files blend5.mos (!****************************************************** Mosel User Guide Example Problems ================================= file blend5.mos ``````````````` User type definition. (c) 2008 Fair Isaac Corporation author: S. Heipcke, 2006 *******************************************************!) model "Blend" uses "mmxprs" declarations REV = 125 ! Unit revenue of product MINGRADE = 4 ! Minimum permitted grade of product MAXGRADE = 5 ! Maximum permitted grade of product ORES = 1..2 ! Range of ores myarray = array(ORES) of real COST: myarray ! Unit cost of ores AVAIL: myarray ! Availability of ores GRADE: myarray ! Grade of ores (measured per unit of mass) use: array(ORES) of mpvar ! Quantities of ores used end-declarations ! Read data from file blend.dat initializations from 'blend.dat' COST AVAIL GRADE end-initializations ! Objective: maximize total profit Profit:= sum(o in ORES) (REV-COST(o))* use(o) ! Lower and upper bounds on ore quality sum(o in ORES) (GRADE(o)-MINGRADE)*use(o) >= 0 sum(o in ORES) (MAXGRADE-GRADE(o))*use(o) >= 0 ! Set upper bounds on variables forall(o in ORES) use(o) <= AVAIL(o) maximize(Profit) ! Solve the LP-problem ! Print out the solution writeln("Solution:\n Objective: ", getobjval) forall(o in ORES) writeln(" use(" + o + "): ", getsol(use(o))) end-model | |||||||||||
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