154 lines
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6.9 KiB
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154 lines
No EOL
6.9 KiB
Markdown
# Article-23576-Automating-Trading-Strategies-MQL5-Double-Top-Double-Bottom
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This repository is an article-derived reference project based on the original MQL5 article. It does not claim to reproduce the full original source code unless files are explicitly attached.
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## Overview
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This repository is derived from the MQL5 article about automating the Double Top and Double Bottom reversal model in MetaTrader 5. The article explains how to convert a visually interpreted chart pattern into a rules-based Expert Advisor that detects confirmed swing pivots, validates the pattern with tolerance and structure filters, and executes trades on neckline breakout or optional pullback.
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The project serves as a reference implementation source for traders and MQL5 developers who want to study objective pattern detection, state-machine driven entry logic, and trade management around reversal setups.
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## Original Article
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- **Article ID:** 23576
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- **Title:** Automating Trading Strategies in MQL5 (Part 53): Double Top and Double Bottom Reversal Model
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- **Author:** Allan Munene Mutiiria
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- **Author Profile:** https://www.mql5.com/en/users/29210372
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- **Publication Date:** Not available
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- **Categories:** Trading, Trading Systems, Expert Advisors, Examples Experts
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- **Article URL:** https://www.mql5.com/en/articles/23576
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## Repository Purpose
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This repository exists to preserve and organize the technical ideas from the article in repository form.
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A reader can use it to:
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- understand how double top and double bottom patterns can be formalized in MQL5
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- study swing-pivot based pattern detection
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- learn how to structure a pattern-trading EA with setup states such as idle, armed, and retest
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- reuse the article’s architecture for experimentation, testing, or further extension in MetaTrader 5
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Because this is article-derived, the practical completeness of the repository depends on the files actually attached by the original author.
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## Key Concepts
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- Trading
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- Trading Systems
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- Expert Advisors
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- Examples Experts
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- Double top pattern detection
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- Double bottom pattern detection
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- Swing pivot confirmation
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- Neckline breakout confirmation
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- Pullback entry logic
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- Pattern validation filters
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- Measured-move targeting
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- Reward-to-risk target selection
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- Trailing stop management
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- State machine based setup handling
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## Algorithm / Architecture Summary
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The article describes an Expert Advisor that processes price action bar by bar and builds mechanical trading rules around reversal patterns.
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1. **Detect confirmed swing pivots**
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- The system confirms swing highs and swing lows using a configurable pivot length.
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- Only confirmed pivots are stored, so provisional right-edge pivots are avoided.
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2. **Store recent pivots in a bounded buffer**
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- Confirmed swings are appended to a rolling history.
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- Duplicate pivots are ignored.
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- The search works only on recent pivot history.
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3. **Search for a double top or double bottom**
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- The newest pivot is treated as the potential second top or second bottom.
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- The algorithm scans backward for a prior pivot of the same type.
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- The neckline is defined by the strongest opposite pivot between the pair:
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- lowest low between two highs for a double top
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- highest high between two lows for a double bottom
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4. **Validate the pattern**
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- Peak or trough similarity is checked using a tolerance relative to pattern height.
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- Minimum spacing in bars can be enforced.
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- Leg balance between the first leg and second leg can be enforced.
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- An optional prior-trend requirement can reject patterns that do not reverse a meaningful preceding move.
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5. **Arm the setup**
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- Once validated, the EA stores the pattern direction, peaks, neckline, extreme, and optional leading trend leg.
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- The setup enters an armed state, waiting for neckline confirmation.
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6. **Wait for breakout confirmation**
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- The pattern is confirmed only when price closes through the neckline.
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- If price invalidates the structure by exceeding the pattern extreme first, the setup is discarded.
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- A timeout prevents stale setups from remaining active indefinitely.
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7. **Optional pullback workflow**
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- The EA can either enter immediately on breakout or wait for a retest of the neckline.
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- In pullback mode, the setup transitions into a retest state and tracks the pullback path until price touches the neckline again or the setup expires.
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8. **Open and protect the trade**
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- Entry is placed at market.
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- Stop loss is placed beyond the pattern extreme with a configurable buffer.
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- Take profit can be calculated in two ways:
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- measured move projected from the neckline
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- reward-to-risk multiple based on stop distance
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9. **Manage active positions**
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- The EA can trail the stop once profit exceeds a configured activation threshold.
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- Trailing applies only to positions associated with the EA’s symbol and magic number.
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10. **Visualize the pattern**
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- The article also describes drawing pattern legs, neckline, labels, breakout path, and pullback annotations on the chart for interpretation and debugging.
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## Mentioned or Attached Files
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### Explicitly attached files
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- An attached ZIP archive is available: https://www.mql5.com/en/articles/download/23576_264386.zip?s=53ca505847b5bd14c085f94ec9cd7b658d340fceb49638e7a82c206d70f5a3bd&t=1788799540
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- The internal file list of the ZIP archive was not provided in the processed input.
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### Files mentioned in the article text
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- `Double Top and Double Bottom.mq5`
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- `Trade\Trade.mqh`
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## Statistics
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- **Word count:** Not available
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- **Reading time:** Not available
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- **Image count:** Not available
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- **Code block count:** Not available
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- **File count:** Not available
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## Tags
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- mql5
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- metatrader-5
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- trading
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- trading-systems
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- expert-advisors
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- examples-experts
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- difficulty-advanced
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## Difficulty
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**Advanced**
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Reason: the article covers non-trivial pattern formalization, pivot-based signal extraction, multi-stage setup handling, configurable validation filters, order management, and trailing-stop logic in an event-driven MQL5 Expert Advisor.
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## Limitations
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- This repository is based on article analysis and attached-material availability rather than a guaranteed full standalone project dump.
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- The full original source structure is not confirmed from the processed input beyond the file references explicitly visible in the article.
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- Although a ZIP archive is attached, its internal contents were not listed in the processed input.
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- Backtesting screenshots in the article do not guarantee live trading performance.
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- The article explicitly presents the work for educational purposes and emphasizes testing and risk management before live deployment.
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- Production readiness should not be assumed unless verified from the actual attached source files.
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## Reference
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- Original article: https://www.mql5.com/en/articles/23576
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- Author profile: https://www.mql5.com/en/users/29210372 |