Analyzing the Time Series and Modifying the Historical Values 

Before you run the forecast, you can check and, if necessary, change the historical values on which the forecast will be based.

  1. From the initial forecast dialog box in the planning table, choose Historical.

    2. A dialog box appears listing historical data from the specified period. Historical data is displayed in the Val.fld column for each period.

  2. Make any necessary corrections to the original values in the Corr.value column.

These are the values that will be used in the forecast.

Time Series Analysis Using Interactive Graphics

The interactive graphics help you to spot patterns and trends at a glance. You can modify your historical data directly in the graphic.

  1. Choose Interact.graphics.

    2. A business graphic appears showing the historical values for the specified period.

  2. Choose Edit ® Modify objects (analog).
  3. Analyze the time series by comparing the graphic with the models listed in Forecast Parameters.
  4. Fine-tune the forecast by correcting unusual or extreme values directly in the business graphic: click on the relevant column, hold the mouse button down, and move the mouse until the desired value is obtained.
  5. To accept the corrected values for use in the forecast, choose Copy.

    6. A dialog box appears in which you see the revised historical data.

  6. Choose Perform forecast.

    7. A dialog box appears in which you define the forecast parameters (see Forecast Parameters).

  7. To carry out the forecast, choose Perform forecast.

A dialog box appears displaying the forecast results.