public object Evaluate(AvgFunction funcExp, object data, IEnumerable <object> parameters = null) { var paramValues = _GetParameterValues(funcExp, data, parameters); return(((IEnumerable <object>)paramValues[0]).Average(i => (decimal)i)); }
public string ToSQL(AvgFunction funcExp) { return(_FunctionToSQL(funcExp, "AVG")); }