Page 68 - Excel Data Analysis
P. 68

04 537547 Ch03.qxd  3/4/03  11:50 AM  Page 54







                     EXCEL DATA ANALYSIS




                  CREATE SCENARIOS



                         ne major benefit of analyzing data is forecasting  You create each scenario in the Add Scenario dialog box.
                         future events with today's information. By asking  First, you specify the cells in which you want to see
                  O "what-if" and constructing various scenarios with  predicted changes. See Chapter 1 for information on
                  your data and the Excel Scenario Manager, you can direct  selecting a range of cells. You specify multiple cells by
                  your current activities to reach long-term company goals.  separating each cell reference with a comma, for example:
                  For example, you can create several scenarios to determine  A3:D4. Next, you assign new values to each cell in the
                  the cost of a business loan at various interest rates.  Scenario Values dialog box. Excel uses these values
                  Comparing these scenarios can help you decide which rate  whenever you select the corresponding scenario. For
                  is financially feasible. By viewing individual scenarios, you  example, if you specify a value of 45 for A3, Excel changes
                  can quickly see how an increase or decrease in an interest  the cell value of A3 to 45 every time you select the scenario.
                  rate can impact your monthly budget. You can also   From your input, Excel generates a scenario. You can apply
                  construct scenarios that involve changing multiple cell  a specific scenario at any time and change the specified
                  values. For example, you may not only want to change the  values of the worksheet by simply selecting it from Scenario
                  interest rate, but also the loan amount with each scenario.
                                                                      Manager dialog box. When you select a different scenario,
                  Constructing scenarios will change your worksheet's data.  Excel changes the values of the cells as specified in the
                  For that reason, you may want to create one scenario that  scenario.
                  contains your original data, or copy your worksheet before
                  applying the scenario feature.

                   CREATE SCENARIOS


























                  ⁄ Click Tools ➪ Scenarios.  ■ The Scenario Manager   ■ The Add Scenario dialog   ■ You can type comments
                                            dialog box opens         box displays.             about the scenario in the
                                                                                               Comment box.
                                            ¤ Click Add.             ‹ Type the scenario name.
                                                                                               ˇ Click OK.
                                                                     › Specify the cells to
                                                                     change.


                   54
   63   64   65   66   67   68   69   70   71   72   73