trader_macdext MACD with controllable MA type &reftitle.description; ReturnTypetrader_macdext arrayreal arrayfastPeriod arrayfastMAType arrayslowPeriod arrayslowMAType arraysignalPeriod arraysignalMAType &warn.undocumented.func; &reftitle.parameters; real fastPeriod fastMAType slowPeriod slowMAType signalPeriod signalMAType &reftitle.returnvalues;