Setting Up Grey Forecast Parameters

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<greyForecast>

<missingData>

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<its>

<it>

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  <kind>GreyForecast</kind>

<method>

<greyForecast>

<missingData>

  <specifiedVector />

  <method>LinTrend</method>

  <methodParameter>5</methodParameter>

  <specifiedValue>0</specifiedValue>

<specifiedTerm>

  <k>4294967295</k>

  </specifiedTerm>

  </missingData>

  <confidenceLevel>0.9</confidenceLevel>

  </greyForecast>

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  <lag>PrecidingValue</lag>

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  <seasonality>None</seasonality>

  <dependence>Linear</dependence>

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<period>

  <identificationStartDate>1990-01-01</identificationStartDate>

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  <forecastStartDate>2018-04-25</forecastStartDate>

  <forecastEndDate>2020-01-01</forecastEndDate>

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  <forecastStartDateParamID />

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                                     "method" : "LinTrend",
                                     "methodParameter" : "5",
                                     "specifiedValue" : "0",
                                     "specifiedTerm" : 
                                      {
                                       "k" : "4294967295"
                                      }
                                    },
                                   "confidenceLevel" : "0.9"
                                  },
                                 "inversionInfo" : 
                                  {
                                   "type" : "None",
                                   "lag" : "PrecidingValue",
                                   "previousLag" : "-1",
                                   "seasonality" : "None",
                                   "dependence" : "Linear",
                                   "K" : "3"
                                  },
                                 "doUseR" : "0",
                                 "supportsR" : "0"
                                },
                               "calendarLevel" : "Year",
                               "outputSliceKey" : "0"
                              }
                            ]
                          }
                        },
                       "kind" : "Simple"
                      },
                     "warnings" : "",
                     "readOnly" : "0"
                    }
                  }
                ]
              }
            },
           "visualController" : 
            {
             "variableRubricatorKey" : "89671",
             "freeVariables" : 
              {
               "its" : ""
              },
             "userRPath" : "",
             "isRExist" : "0"
            },
           "suppressEmptyFilter" : 
            {
             "suppressEmpty" : "0",
             "suppressEmptyArea" : "SerieBounds"
            },
           "readOnly" : "0",
           "variableTestUseR" : "0",
           "calculateIdentOnFact" : "0"
          },
         "scenarios" : 
          {
           "its" : ""
          },
         "details" : 
          {
           "period" : 
            {
             "identificationStartDate" : "1990-01-01",
             "identificationEndDate" : "2018-04-24",
             "forecastStartDate" : "2018-04-25",
             "forecastEndDate" : "2020-01-01",
             "identificationStartDateParamID" : "",
             "identificationEndDateParamID" : "",
             "forecastStartDateParamID" : "",
             "forecastEndDateParamID" : "",
             "autoPeriod" : "0",
             "identificationStartOffset" : "0",
             "identificationEndOffset" : "0",
             "forecastEndOffset" : "0",
             "isIdentStartCorrect" : "1",
             "isIdentEndCorrect" : "1",
             "isForecastEndCorrect" : "1"
            },
           "currentPoint" : "2018-04-25"
          },
         "useSavedCoefficients" : "0",
         "useScenarios" : "0",
         "readOnly" : "0"
        }
      }
    }
  }
}

public static MsItem SetMsGrey(MsId ms, ulong modelKey, ulong eqKey)
{  // Set operation execution parameters
    var setMsOp = new SetMs();
    setMsOp.tMs = ms;
    setMsOp.tArg = new SetMsArg()
    {  // Set data change pattern
        pattern = new MsMdPattern()
        {
            item = new MsItemPattern()
            {  // Specify model key
                key = modelKey,
                problem = new MsProblemPattern()
                {
                    metamodel = new MsMetaModelPattern()
                    {
                        calculationChain = ListOperation.Change
                    }
                }
            }
        }, // Set data that must be changed
        meta = new MsMd()
        {
            item = new MsItem()
            {  // Specify model key
                k = modelKey,
                type = MsItemType.Problem,
                problemMd = new MsProblem()
                {
                    metamodel = new MsMetaModel()
                    {
                        calculationChain = new MsCalculationChainEntries()
                        {
                            its = new MsCalculationChainEntry[]
                            {
                                new MsCalculationChainEntry()
                                {
                                    k = eqKey,
                                    type = MsCalculationChainType.Model,
                                    model = new MsModel()
                                    {
                                        transform = new MsFormulaTransform()
                                        {
                                            formulas = new TsFormulas()
                                            {
                                                its = new TsFormula[]
                                                {
                                                    new TsFormula()
                                                    {
                                                        kind = TsFormulaKind.GreyForecast,
                                                        method = new TsMethod()
                                                        {   // Set method calculation parameters                                    
                                                            greyForecast = new TsGreyForecastMethod()
                                                                {
                                                                    missingData = new StatMissingData()
                                                                        {method = StatMissingDataMethod.LinTrend},
                                                                    confidenceLevel = 0.90
                                                                }
                                                        }
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }, // Set changed data extraction pattern
        metaGet = new MsMdPattern()
        {
            scenarios = ListOperation.Get,
            period = true,
            item = new MsItemPattern()
            {
                key = modelKey,
                problem = new MsProblemPattern()
                {
                    details = true,
                    scenarios = ListOperation.Get,
                    useSavedCoefficients = true,
                    metamodel = new MsMetaModelPattern()
                    {
                        calculationChain = ListOperation.Get,
                        calcChainPattern = new MsCalculationChainPattern()
                        {
                            modelPattern = new MsModelPattern()
                            {
                                transform = new MsFormulaTransformPattern()
                                {
                                    kind = true,
                                    formulaCount = true,
                                    formulas = new TsFormulaPattern()
                                    {
                                        method = new TsMethodPattern() { }
                                    },
                                    equationsFormula = new TsFormulaPattern()
                                    {
                                        method = new TsMethodPattern() { }
                                    }
                                }
                            }
                        },
                        visualControllerPattern = new MsMetaModelVisualControllerPattern()
                        {
                            variableRubricatorKey = true,
                            levelFormat = MsLevelFormat.Short,
                            useSourceName = false,
                            freeVariables = true
                        }
                    }
                }
            }
        }
    }; // Create a proxy object for operation execution
    var somClient = new SomPortTypeClient();
    // Set operation execution parameters
    var result = somClient.SetMs(setMsOp);
    return result.meta.item;
}