trader_ppo Percentage Price Oscillator &reftitle.description; arraytrader_ppo arrayreal intfastPeriod intslowPeriod intmAType &reftitle.parameters; real &trader.arg.array.of.real; fastPeriod &trader.arg.fast.period; slowPeriod &trader.arg.slow.period; mAType &trader.arg.ma.type; &reftitle.returnvalues; Returns an array with calculated data or false on failure.