Purpose
Count the number of values in a given variable.
Syntax
returnedNumber = arraylength(variableName)
returnedNumber - type: int
variableName - type: var
Returns
Remarks
Note that the variableName must evaluate to a variable reference (G, S, X, N).
WARNING: arraylength() never returns 0, since every variable is considered to have at least one value. This may yield unexpected behaviors at times.