Calculates the Geometric Moving Average (GMA) for a given period for all possible
data points (i.e. periods) for which there is sufficient historical data provided.

# Syntax

#### Parameters

*s*
- A statistical series.
*lengthOfMA*
- The number of periods over which the moving average is evaluated
for each period.

#### Return Value

A series where the first term corresponds to the Moving Average on the
last period and the previous value is the value of the Moving average on the previous
period and so on.

# Exceptions

# See Also