OPEN-SOURCE SCRIPT
Trading Rule #19
This script is based on Trading Rule #19 from Chester Keltner's book How To Make Money On Commodities. It is best applied to candlestick charts with longer time frames and plans with minimal losses (i.e. swing trades). The rule is based on "Key" trend days (this is applied to daily charts in the book).
An initial Key-Up day is established on the third day of 3 consecutive new highs. Subsequent key-up days are determined as follows:
1. The first day following an initial key-up day trades 0.375% above the previous key-up day
2. The second day or any following day trades 0.125% above the previous key-up day
An initial Key-Down day is established on the third day of 3 consecutive new lows. Subsequent key-down days are determined as follows:
1. The first day following an initial key-up day trades 0.375% below the previous key-down day
2. The second day or any following day trades 0.125% below the previous key-down day
Green candles are considered up-trend, red candles are down-trend. Gray candles are undecided - when there is a new high and low in the same time frame, when there is no new high or low in that time frame, or the order price was cleared.
Order prices are represented as a blue line, with some days being "na" when order prices remain unchanged. On key-up days, orders are placed 0.375% below the low of the previous key-up day or the day previous (whichever is lower). Order prices on key-down days are placed 0.375% above the high of the previous key-down day or the day previous (whichever is higher).
The tolerance setting mainly effects the plot point of order price, at a certain point key-trend rules will take priority over order price (meaning if tolerance is high enough, order price will have no effect on determining key-trends).
An initial Key-Up day is established on the third day of 3 consecutive new highs. Subsequent key-up days are determined as follows:
1. The first day following an initial key-up day trades 0.375% above the previous key-up day
2. The second day or any following day trades 0.125% above the previous key-up day
An initial Key-Down day is established on the third day of 3 consecutive new lows. Subsequent key-down days are determined as follows:
1. The first day following an initial key-up day trades 0.375% below the previous key-down day
2. The second day or any following day trades 0.125% below the previous key-down day
Green candles are considered up-trend, red candles are down-trend. Gray candles are undecided - when there is a new high and low in the same time frame, when there is no new high or low in that time frame, or the order price was cleared.
Order prices are represented as a blue line, with some days being "na" when order prices remain unchanged. On key-up days, orders are placed 0.375% below the low of the previous key-up day or the day previous (whichever is lower). Order prices on key-down days are placed 0.375% above the high of the previous key-down day or the day previous (whichever is higher).
The tolerance setting mainly effects the plot point of order price, at a certain point key-trend rules will take priority over order price (meaning if tolerance is high enough, order price will have no effect on determining key-trends).
开源脚本
本着真正的TradingView精神，此脚本的作者已将其开源，以便交易者可以理解和验证它。向作者致敬！您可以免费使用它，但在出版物中重复使用此代码受网站规则约束。 您可以收藏它以在图表上使用。
想在图表上使用此脚本？
免责声明
这些信息和出版物并不意味着也不构成TradingView提供或认可的金融、投资、交易或其它类型的建议或背书。请在使用条款阅读更多信息。