The tool supports interface of Foresight Analytics Platform 9 or earlier.
The Calculation Periods panel looks the same for all models:
The panel contains the following parameters:
Frequency. The frequency, by which the model should be calculated, is determined.
The format of setting sample and forecasting periods depends on the selected calculation frequency. For example, if the annual frequency is selected, only year should be specified; if the semi-annual frequency is selected, half-year and year should be specified, and so on. If the weekly frequency is used, the date should be specified (day, month, year), by which the week is determined. Parameters of the week (the first day and the number of days) are taken from the output variable.
Sample Period. Sample period limits are determined. The modeling series is calculated based on the sample period to be used further to make the forecast and calculate various factors.
From. Sample period start date. Select the method of calculating the period start date in the drop-down list:
Start of Data +/-. The date is equal to the first actual date of the input series plus the number of periods specified in the value editor displayed on the right.
Specific Date. Select a date in the date editor on the right.
Today +/-. The date is equal to the current date plus the number of periods specified in the value editor displayed on the right.
From Sample Period End. The sample period start date is equal to the sample period end date minus the number of periods defined in the value editor displayed on the right.
From Parent. The sample period start date is equal to the sample period start date of model owner plus the number of periods defined in the value editor displayed on the right.
To. Sample period end. Select the method of calculating the period end date in the drop-down list:
Start of Data +/-. The date is equal to the first actual date of the input series plus the number of periods specified in the value editor displayed on the right.
End of Data +/-. The date is equal to the last actual date of the input series plus the number of periods specified in the value editor displayed on the right.
Specific Date. Select a date in the date editor on the right.
Today +/-. The date is equal to the current date plus the number of periods specified in the value editor displayed on the right.
From Sample Period Start. The sample period end date is the sample period start date plus the number of periods defined in the value editor displayed on the right.
From Parent. The sample period end date is equal to the sample period end date of owner plus the number of periods defined in the value editor displayed on the right.
NOTE. The selected date periods affect the possibility of selecting other period dates in the following order: the sample period start affects the period end, the sample period end affects the forecasting period start, the forecasting period start affects the period end.
Forecasting Period. Model forecasting period limits are determined. Factor values for the forecasting period are calculated using the sample period date and the selected calculation method. The period start date equals to the sample period end date plus one period. The period end date is determined by the user. Select the method of calculating the period start date in the drop-down list:
End of Data +/-. The date is set to the last actual date of the model factors plus the number of periods specified in the value editor displayed on the right.
Specific Date. Select a date in the date editor on the right.
From Sample Period End. The forecasting period end date is the sample period end date plus the number of periods defined in the value editor displayed on the right.
Today +/-. The date is equal to the current date plus the number of periods specified in the value editor displayed on the right.
From Parent. The forecasting period end date is equal to the forecasting period end date plus the number of periods specified in the value editor displayed on the right.
Remember that the forecasting period defined for the problem is used in problem calculation.
NOTE. If the Today +/- method is used, the sample end date and the forecasting end date shift to the period end. It is relevant for monthly frequency or higher.
For example, sample end date is April 2012, and calculation end date is equal to the sample end date. Thus, on series calculation the calculation end date is 30.04.2012.
Calculation Sample Period. The current sample period limits are displayed.
Calculation Forecasting Period. The current forecasting period limits are displayed.
Use Specified Periods to Calculate the Problem. If this checkbox is selected, the model is calculated using the periods specified above. If the checkbox is deselected, the periods, specified for the entire problem, are used.
When a model is created, the periods are generated as follows:
For the sample period:
The sample period start date is obtained from the modeling container calendar start date.
The sample period end date is set for the current date.
For the forecasting period:
The forecasting period start date is set to the next day after the current date.
The forecasting period end date is set to the modeling container calendar end date.
The start and end dates of the modeling container calendar are set on the Calendar Parameters page of the modeling container wizard.
See also: