Entering Certainty Directly

Alternately, you can type the certainty level on the forecast chart and allow Crystal Ball to calculate the minimum and maximum for you. Make sure that the certainty grabbers are free (whenever you click an certainty grabber, it turns to a lighter color and is considered anchored). To free the lighter color certainty grabber, click it. Then when you type in a certainty level, you will center the certainty range on the median statistic.

Note:

To free or anchor both certainty grabbers, press Ctrl+click or Shift+click.

  In the following procedure, you can enter a certainty level of 10% and watch Crystal Ball move the certainty grabbers:

  1. Press Ctrl+click (or Shift+click) until both certainty grabbers are free (a lighter color).

  2. Type 10 in the Certainty field.

  3. Press Enter.

    Crystal Ball moves the certainty grabbers to include 10% of the trials centered around the median statistic of the entire range.