Mark last 20 Candle

前天

This Pine Script indicator, titled "Mark last 20 candle" (short name: "Last 20"), was designed to visually highlight a specific candle on your TradingView chart.

What the indicator does:
The main function of this script is to exclusively mark the first candle within the most recent window of 20 candles on your chart. Instead of coloring all 20 candles, it precisely identifies and highlights only the beginning of this 20-candle sequence.

How the indicator works:

• Number of candles: The script uses a user-defined variable, num_candles_to_mark, set to 20, to specify the size of the relevant candle window.
  
• Dynamic Identification: The indicator uses the built-in Pine Script variables:
  
• bar_index: Represents the index of the currently processed candle (starting at 0).
  
• last_bar_index: Represents the index of the very last available candle in your chart (the most recent).
  
• Precise Marking: The core logic bar_index == last_bar_index - num_candles_to_mark + 1 calculates the exact index of the candle that is 20 bars before the last_bar_index. If the bar_index of the currently processed candle matches this calculated position, that specific candle is colored blue with 80% transparency.
  
• Automatic Shift: As new candles appear on your chart (and last_bar_index increases accordingly), the calculated target index (last_bar_index - num_candles_to_mark + 1) also automatically shifts one bar to the right. This ensures that the marked candle automatically "moves along" and always highlights the first candle of the current 20-candle window.
  

Usage:
This indicator is useful for traders who want to visually track the starting point of a fixed window of recent price action. It can help identify patterns or apply strategies relative to that specific candle.

To use it, simply copy the provided Pine Script code into your TradingView Pine Editor and add it to your chart. The marked candle will dynamically update as new data arrives.

前天

發行說明

This Pine Script indicator, titled "Mark last 20 candle" (short name: "Last 20"), was designed to visually highlight a specific candle on your TradingView chart.

What the indicator does:
The main function of this script is to exclusively mark the first candle within the most recent window of 20 candles on your chart. Instead of coloring all 20 candles, it precisely identifies and highlights only the beginning of this 20-candle sequence.

How the indicator works:

• Number of candles: The script uses a user-defined variable, num_candles_to_mark, set to 20, to specify the size of the relevant candle window.
  
• Dynamic Identification: The indicator uses the built-in Pine Script variables:
  
• bar_index: Represents the index of the currently processed candle (starting at 0).
  
• last_bar_index: Represents the index of the very last available candle in your chart (the most recent).
  
• Precise Marking: The core logic bar_index == last_bar_index - num_candles_to_mark + 1 calculates the exact index of the candle that is 20 bars before the last_bar_index. If the bar_index of the currently processed candle matches this calculated position, that specific candle is colored blue with 80% transparency.
  
• Automatic Shift: As new candles appear on your chart (and last_bar_index increases accordingly), the calculated target index (last_bar_index - num_candles_to_mark + 1) also automatically shifts one bar to the right. This ensures that the marked candle automatically "moves along" and always highlights the first candle of the current 20-candle window.
  

Usage:
This indicator is useful for traders who want to visually track the starting point of a fixed window of recent price action. It can help identify patterns or apply strategies relative to that specific candle.

To use it, simply copy the provided Pine Script code into your TradingView Pine Editor and add it to your chart. The marked candle will dynamically update as new data arrives.