General model options
The General options control the model horizon dates, costing and transportation calculations. In addition, you can determine the culture for the current model.
Set general options
- Select Model Actions
> Model Options > General. - Set the following options as needed:
- Click Save.
| Option | Description |
| Model Horizon Start Date |
Use this optoin to determine the model horizon start date and time. Records with dates completely outside the current model horizon are not included when solving the model. Default: January 1 of the current calendar year. |
| Model Horizon End Date |
Use this option to determine the model horizon end date and time. Records with dates completely outside the current model horizon are not included when solving the model. Default: December 31 of the current calendar year. |
| Inventory Carrying Cost |
This value is the rate used to calculate the cost of holding inventory of a product. It is used in a calculation with the average inventory, product value, and period length to determine the holding cost. If the inventory carrying cost percentage is 10%, enter "10" in this field. Default: 12% |
| Discount Rate (NPV) |
Use this rate to calculate the time value of money, also called the Net Present Value (NPV). Enter the annual discount rate. The discount rate is compounded per time period and is used to compare the present value of money today to the present value of money in the future. The discount rate is applied as follows: 1 / (1 + r) ^ (Elapsed Days/Days Per Year) where: r = Discount Rate entered in Model Settings Elapsed Days = Number of days from the model Start date to the end of the time period. Days Per Year = 365 Note: The Discount Rate (NPV) is not applied in these cases: It is not applied when the model is a single period model. It is not applied to Expression Based Costs when the constraints that the costs are based upon have a Constraint Period of “(ALL_Periods)” All. Default: 0 |
| Default Transport Speed |
This value is used to determine the service time between locations based on the distance. You can override this global speed on the Transportation Assets table. Default: 55 |
| Transportation Circuity Factor |
When Modeler calculates the distance between two sites using “Straightline plus circuity factor,” the circuity factor is a percentage added to the straightline distance between the pairs of latitudes and longitudes. For example, if the Transportation Circuity Factor is 17, the straightline distance is multiplied by 1.17 to provide a more accurate road distance. If you are running Greenfield Analysis, do not set the Transportation Circuity Factor to 0. When the value is 0, the internal default of 14% is applied. You can successfully approximate the 0 value by setting Transportation Circuity Factor to a small value, such as 0.001. Default: 17 |
| Model Culture |
This option establishes the expected default formats for numbers and dates when writing input files for solving. This is important when using non-US formats and entering values in text columns that support numbers, distributions and step costs. The Model Culture is used to evaluate the data when writing input to the solvers. For example, when the Model Culture is German (Germany), the comma in a value such as 1,5 is assumed to be the decimal. Values that are stored in columns that are actual numbers and dates (not text fields) will accept and display values based on the current machine region. When you change the Model Culture, values that are stored in the Options table are updated to the format for the selected culture. This includes values such as the Network Optimization Relative Gap (%) and the Transportation Optimization Distance Factor. For data within your input tables, you must ensure that the formats are correct for the culture. Refer to Support for localized formats for additional information about data formats and how to apply them. |
Last modified: Wednesday May 15, 2024