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• The built-in DELTA operation, which defines the maximum change
between calculated values for each iteration.
• A logical expression, which defines a condition that stops iteration when
the expression is TRUE.
To set your own completion test, design a logical expression that describes
the completion test. Enter the expression in a cell on the spreadsheet, then
type the cell reference at the completion test at field. If you do not enter a
value, Multiplan uses the default, DELTA ( )
<
0.00 I.
The ITERCNT Operation
Use the ITERCNT operation to provide initial values for iterating models,
create a table of iteration results, and set up a completion test.
Initial Values
Many spreadsheet models require a set initial value, even though the actual
values are calculated with a formula during iteration. Use the IF operation
to provide both the formula and a set initial value.
IF (ISNA (ITERCNT ( )), Initial Value, Gross Profit - Bonus)
During the first calculation after a change to the spreadsheet,
ITERCNT ( ) produces
#
N/A. Therefore, ISNA ( ) is TRUE, and
Multiplan uses the value from the cell named "Initial Value."
Then, ITERCNT ( ) produces a number, and ISNA ( ) is FALSE.
Multiplan then uses the formula (Gross Profit - Bonus) to calculate
the value.
Results Tables
Create a table of partial results from an iteration by copying the formula
into successive rows.
IF(ITERCNTO=ROWO-9,Net Profit, RC)
Each row receives the value of Net Profit during a particular iteration
and remains unchanged (RC) for all other iterations, before and after.
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