Xin code lọc bb bó hẹp tích lũy

E rất mong bác nào cho e xin code lọc cp bó hẹp BB và tích lũy cạn vol ạ . Mong các cao nhân hỗ trợ và giúp e với ạ . E đội ơn ạ

 

của bạn đây , vừa sử dụng như chart vừa để lọc dc

 

Bác ơi ,lời đầu cảm ơn bác nhiều ạ , bác có thể nói qua cơ chế lọc của e nó ntn k ạ , là lấy dk gì lọc ấy ạ

 

mình nhờ chatgpt giải thích đoạn code , đây là code mình sưu tầm bạn nha .

This appears to be the AFL (AmiBroker Formula Language) code for a trading system that combines elements of Keltner Channels and Bollinger Bands to identify Bollinger Band squeezes and potential breakouts. Let me break down the code step by step:

1. Exponential Moving Average (EMA):
   
   • It calculates the Exponential Moving Average of the closing price over a specified length (in this case, 20 periods). The result is stored in the variable Price.
2. Keltner Channels:
   
   • It calculates the Keltner Channels, which consist of an upper and lower channel.
   • kLength is set to 20 (the same as Length).
   • kN is set to 1.5, which is a multiplier for Average True Range (ATR).
   • kATR calculates the Average True Range based on kLength.
   • kUpper and kLower are calculated based on the Price and ATR values.
3. Bollinger Bands:
   
   • It calculates the Bollinger Bands, which also consist of an upper and lower band.
   • bbLength is set to 20 (the same as Length).
   • bbN is set to 2, which is a multiplier for the standard deviation of closing prices.
   • bbStDevValues calculates the standard deviation of closing prices based on bbLength.
   • bbUpper and bbLower are calculated based on the Price and standard deviation values.
4. IsBBSqueeze:
   
   • It checks whether the Bollinger Bands are within the Keltner Channels. If both conditions are met (Bollinger Bands are inside Keltner Channels), IsBBSqueeze is set to true.
5. Proportion:
   
   • It calculates the proportion of the width of the Keltner Channels to the width of the Bollinger Bands.
6. BBBreakout:
   
   • It checks if the Proportion has crossed above 1, which might indicate a breakout from the Bollinger Bands.
7. Plotting:
   
   • It plots the Bollinger Bands (top and bottom) and highlights the region between them in either yellow or white, depending on whether IsBBSqueeze is true or false.
   • It also plots the closing prices as green candles.
   • Additionally, it adds a column in the results window to display whether a Bollinger Band breakout has occurred.
8. Filter:
   
   • The trading system filters based on the condition BBBreakout, so it will only take trades when a breakout condition is met.

Overall, this script combines Bollinger Bands and Keltner Channels to identify Bollinger Band squeezes and potential breakouts. It plots the bands and highlights squeeze periods, and it also filters trading signals based on the breakout condition. Please note that trading involves risks, and this script is for educational purposes only. Always conduct thorough testing and risk management before using any trading strategy in a live environment.