package bollmaker import ( indicatorv2 "github.com/c9s/bbgo/pkg/indicator/v2" ) type PriceTrend string const ( NeutralTrend PriceTrend = "neutral" UpTrend PriceTrend = "upTrend" DownTrend PriceTrend = "downTrend" UnknownTrend PriceTrend = "unknown" ) func detectPriceTrend(inc *indicatorv2.BOLLStream, price float64) PriceTrend { if inBetween(price, inc.DownBand.Last(0), inc.UpBand.Last(0)) { return NeutralTrend } if price < inc.DownBand.Last(0) { return DownTrend } if price > inc.UpBand.Last(0) { return UpTrend } return UnknownTrend }