FICO Xpress Optimization Examples Repository: Reading 3-dimensional arrays

FICO Xpress Optimization Examples Repository

Reading 3-dimensional arrays

Description

This example shows how to read a 3-dimensional array from an excel file (threedimarr.mos) and from a generic spreadsheet (threedimarr5.mos). Model versions (2) and (4) show the same example for databases, and model version (6) works with data in CSV format.

threedimarr.zip

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Source Files

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threedimarr.mos	[download]
threedimarr2.mos	[download]
threedimarr3.mos	[download]
threedimarr4.mos	[download]
threedimarr5.mos	[download]
threedimarr6.mos	[download]

Data Files

threedim.csv	[download]
threedim.xls	[download]
threedim.xlsx	[download]
threedim.mdb	[download]
threedim.sqlite	[download]

threedimarr.mos

(!*******************************************************
   Mosel Example Problems 
   ======================

   file threedimarr.mos
   ````````````````````
   Reading 3-dimensional arrays.
   - Using 'initializations from' with the odbc driver -
       
   (c) 2010 Fair Isaac Corporation
       author: S. Heipcke, July 2010, rev. Jan. 2014
*******************************************************!)

model ThreeDimArr
 uses "mmodbc"

 parameters
  CSTR = "threedim.mdb"        ! Use Access database `threedim.mdb'
!  CSTR = 'threedim.sqlite'    ! Use SQLite database `threedim.sqlite' directly
                               ! Use SQLite database `threedim.sqlite' via ODBC
!  CSTR = 'DSN=sqlite;DATABASE=threedim.sqlite'
 end-parameters

 declarations
  I: range
  J: set of string
  K = 1..5	              ! The last index set must be defined in the model
  A: dynamic array(I,J,K) of real
 end-declarations

 initializations from 'mmodbc.odbc:debug;noindex;' + CSTR
  A as 'Tab_23'
 end-initializations

 writeln("A: ")
 forall(i in I, j in J, k in K | exists(A(i,j,k)))
  writeln("A(", i, ",", j, ",", k, "): ", A(i,j,k))

end-model