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Sum Array Function
Math Statistics Class

Public Function SumArray( _
    ByRef vValues As Variant _
    ) As Variant

Sum (total) of numeric values.
More efficient version of the Sum Function but with restrictions on the arguments it accepts.

Examples: 
    SumArray(Array(12, 34, 56)) = 102
    SumArray(SampleData) = 13354
See also: 
    Sum Function
    ProductArray Function
    Count Function
    SUM Function (Microsoft Excel)
vValues: Numeric-type array or Variant array containing only numeric elements. This function is NOT affected by the current setting of the StatVarType Property. It assumes that vValues is an array that contains only numeric elements.
Return value: Function returns the total of the numeric values within the array. Function returns Null if there is some type of error, such as if the argument is a Variant array which contains an Object reference or String.
v1.5 Note: This function replaces the SumVariantVector function, which has been removed from ArrayArithmetic Class. This function is slightly different in that it examines all of the elements in the array from its lower bound through its upper bound.

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