trader_mfi Money Flow Index &reftitle.description; arraytrader_mfi arrayhigh arraylow arrayclose arrayvolume integertimePeriod &reftitle.parameters; high &trader.arg.array.of.real.high; low &trader.arg.array.of.real.low; close &trader.arg.array.of.real.close; volume &trader.arg.array.of.real.volume; timePeriod &trader.arg.time.period; &reftitle.returnvalues; Returns an array with calculated data or false on failure.