Dynamic using arrays

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The initial value of a dynamic variable — that is, the first parameter to the Dynamic() function — can be a number, variable identifier, or other expression that evaluates to a single number, list, or array. Analytica evaluates a dynamic variable starting from each initial value, in each time period, so the result is a correctly dimensioned array.

Example: Expanding the example (see “Dynamic function”), suppose the inflation rate of gasoline is uncertain. Instead of providing a single numerical value, you could define the inflation rate as a list.

Chapter17 11.png

Using the new Inflation variable in the definition for Gasprice, the results show three different rates of increases in gasoline prices from 1990 to 1994:

Gasprice:
Dynamic(1.2, Gasprice[Time - 1]*(1 + Inflation)) →

Chapter17 12.png

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