Add files via upload

2026-07-27 18:27:44 +00:00 · 2025-12-26 15:19:15 +03:30
parent b54fbf0aa8
commit 185ec2ed5d
7 changed files with 603 additions and 17 deletions
@@ -815,3 +815,174 @@ tbody tr:hover {
 .loading {
    animation: pulse 2s ease-in-out infinite;
 }
+
+/* Walk-Forward Analysis Badges */
+.wf-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: 6px;
+    padding: 6px 12px;
+    border-radius: 20px;
+    font-size: 12px;
+    font-weight: 600;
+    margin-left: 10px;
+}
+
+.wf-badge-pass {
+    background: rgba(72, 187, 120, 0.15);
+    color: var(--accent-success);
+    border: 1px solid rgba(72, 187, 120, 0.3);
+}
+
+.wf-badge-fail {
+    background: rgba(237, 137, 54, 0.15);
+    color: var(--accent-warning);
+    border: 1px solid rgba(237, 137, 54, 0.3);
+}
+
+.wf-icon {
+    font-size: 14px;
+    font-weight: 700;
+}
+
+.wf-text {
+    font-size: 11px;
+    text-transform: uppercase;
+    letter-spacing: 0.5px;
+}
+
+.wf-score {
+    background: rgba(255, 255, 255, 0.1);
+    padding: 2px 6px;
+    border-radius: 10px;
+    font-size: 11px;
+    font-weight: 700;
+}
+
+/* Walk-Forward Results Tab */
+.wf-summary {
+    display: flex;
+    gap: 30px;
+    margin-bottom: 30px;
+    align-items: center;
+}
+
+.robustness-gauge {
+    text-align: center;
+    padding: 25px;
+    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
+    border-radius: 15px;
+    color: white;
+    min-width: 160px;
+    box-shadow: var(--shadow);
+}
+
+.gauge-value {
+    font-size: 52px;
+    font-weight: 700;
+    line-height: 1;
+}
+
+.gauge-label {
+    font-size: 13px;
+    opacity: 0.95;
+    margin-top: 8px;
+    text-transform: uppercase;
+    letter-spacing: 1px;
+}
+
+.wf-status {
+    flex: 1;
+    padding: 20px 25px;
+    border-radius: 12px;
+    font-size: 16px;
+}
+
+.status-pass {
+    background: rgba(72, 187, 120, 0.15);
+    border-left: 4px solid var(--accent-success);
+    color: var(--accent-success);
+}
+
+.status-fail {
+    background: rgba(245, 101, 101, 0.15);
+    border-left: 4px solid var(--accent-danger);
+    color: var(--accent-danger);
+}
+
+.comparison-table {
+    margin: 25px 0;
+    background: var(--bg-secondary);
+    border-radius: 12px;
+    overflow: hidden;
+}
+
+.comparison-table table {
+    width: 100%;
+    border-collapse: collapse;
+}
+
+.comparison-table th,
+.comparison-table td {
+    padding: 15px 20px;
+    text-align: left;
+    border-bottom: 1px solid var(--border-color);
+}
+
+.comparison-table th {
+    background: var(--bg-card);
+    font-weight: 600;
+    color: var(--text-secondary);
+    text-transform: uppercase;
+    font-size: 11px;
+    letter-spacing: 1px;
+}
+
+.comparison-table tbody tr:hover {
+    background: var(--bg-hover);
+}
+
+.comparison-table .good {
+    color: var(--accent-success);
+    font-weight: 600;
+}
+
+.comparison-table .warning {
+    color: var(--accent-warning);
+    font-weight: 600;
+}
+
+.comparison-table .bad {
+    color: var(--accent-danger);
+    font-weight: 600;
+}
+
+.wf-charts {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 25px;
+    margin-top: 30px;
+}
+
+.wf-chart-container {
+    background: var(--bg-secondary);
+    padding: 20px;
+    border-radius: 12px;
+}
+
+.wf-chart-container h4 {
+    margin-bottom: 15px;
+    color: var(--accent-primary);
+    font-size: 16px;
+}
+
+@media (max-width: 768px) {
+    .wf-charts {
+        grid-template-columns: 1fr;
+    }
+
+    .wf-summary {
+        flex-direction: column;
+        align-items: stretch;
+    }
+}
@@ -211,6 +211,29 @@
                            <small>Minimum trade count (10-200)</small>
                        </div>
                    </div>
+
+                    <!-- Walk-Forward Analysis -->
+                    <div class="config-card">
+                        <h3>Walk-Forward Analysis</h3>
+                        <div class="form-group">
+                            <label>
+                                <input type="checkbox" id="enable-walkforward" checked>
+                                Enable Walk-Forward Validation
+                            </label>
+                            <small>Validate strategies on out-of-sample data to detect overfitting</small>
+                        </div>
+                        <div class="form-group" id="walkforward-settings">
+                            <label>Training Period: <span id="training-percent">70</span>%</label>
+                            <input type="range" id="training-ratio" min="50" max="90" value="70" step="5"
+                                oninput="updateTrainingSplit()">
+                            <div class="split-info"
+                                style="display: flex; justify-content: space-between; margin-top: 5px; font-size: 12px; color: #718096;">
+                                <span>Training: <span id="training-bars">0</span> bars</span>
+                                <span>Testing: <span id="testing-bars">0</span> bars</span>
+                            </div>
+                            <small>Higher ratio = more data for training, less for validation</small>
+                        </div>
+                    </div>
                </div>

                <div class="action-buttons">
@@ -297,21 +320,22 @@

    <!-- Scripts -->
    <script src="js/utils.js"></script>
-    <script src="js/strategy.js"></script>
+    <script src="js/strategy.js?v=2.2"></script>
    <script src="js/backtester.js"></script>
-    <script src="js/ga-engine.js"></script>
-    <script src="js/rule-parser.js"></script>
-    <script src="js/mq4-converter.js"></script>
-    <script src="js/mq5-converter.js"></script>
-    <script src="js/ctrader-converter.js"></script>
-    <script src="js/pine-converter.js"></script>
-    <script src="js/mq4-generator.js"></script>
-    <script src="js/mq5-generator.js"></script>
-    <script src="js/report-generator.js"></script>
-    <script src="js/strategy-details.js"></script>
-    <script src="js/html-report-generator.js"></script>
-    <script src="js/ui-controller.js"></script>
-    <script src="js/main.js?v=2.0"></script>
+    <script src="js/walk-forward.js"></script>
+    <script src="js/ga-engine.js?v=2.2"></script>
+    <script src="js/rule-parser.js?v=2.1"></script>
+    <script src="js/mq4-converter.js?v=2.1"></script>
+    <script src="js/mq5-converter.js?v=2.1"></script>
+    <script src="js/ctrader-converter.js?v=2.1"></script>
+    <script src="js/pine-converter.js?v=2.1"></script>
+    <script src="js/mq4-generator.js?v=2.1"></script>
+    <script src="js/mq5-generator.js?v=2.1"></script>
+    <script src="js/report-generator.js?v=2.1"></script>
+    <script src="js/strategy-details.js?v=2.1"></script>
+    <script src="js/html-report-generator.js?v=2.1"></script>
+    <script src="js/ui-controller.js?v=2.1"></script>
+    <script src="js/main.js?v=2.1"></script>
 </body>

 </html>
@@ -14,9 +14,15 @@ class GeneticOptimizer {
            minTrades: config.minTrades || 30,
            minPF: config.minPF || 1.5,
            maxDD: config.maxDD || 25,
-            minWR: config.minWR || 45
+            minWR: config.minWR || 45,
+            // Walk-Forward Analysis settings
+            enableWalkForward: config.enableWalkForward || false,
+            trainingRatio: config.trainingRatio || 0.7
        };

+        // Debug: Log walk-forward config
+        console.log('🔧 GA Config - Walk-Forward:', this.config.enableWalkForward, 'Ratio:', this.config.trainingRatio);
+
        this.population = [];
        this.foundStrategies = [];
        this.isRunning = false;
@@ -40,11 +46,39 @@ class GeneticOptimizer {
     * Evaluate fitness for all strategies
     */
    evaluatePopulation() {
+        // Log walk-forward status (only once per generation)
+        if (this.currentGeneration === 0) {
+            console.log('🔬 Walk-Forward Analysis:', this.config.enableWalkForward ? 'ENABLED' : 'DISABLED');
+            if (this.config.enableWalkForward) {
+                console.log('📊 Training Ratio:', (this.config.trainingRatio * 100) + '%');
+            }
+        }
+
        for (const strategy of this.population) {
+            // Regular backtest on full data
            const backtester = new Backtester(this.data, strategy, this.symbol);
            strategy.metrics = backtester.run();
+
+            // Walk-forward analysis (if enabled)
+            if (this.config.enableWalkForward) {
+                const wfAnalysis = new WalkForwardAnalysis(
+                    this.data,
+                    this.config.trainingRatio || 0.7
+                );
+                strategy.walkForward = wfAnalysis.analyze(strategy, this.symbol);
+
+                // Penalize strategies that fail walk-forward validation
+                if (!strategy.walkForward.passed) {
+                    strategy.fitness = this.calculateFitness(strategy.metrics) * 0.5; // 50% penalty
+                } else {
+                    // Bonus for high robustness
+                    const robustnessBonus = 1 + (strategy.walkForward.robustness / 200); // Up to 50% bonus
+                    strategy.fitness = this.calculateFitness(strategy.metrics) * robustnessBonus;
+                }
+            } else {
                strategy.fitness = this.calculateFitness(strategy.metrics);
            }
+        }

        // Sort by fitness (descending)
        this.population.sort((a, b) => b.fitness - a.fitness);
@@ -281,7 +281,10 @@ async function startGeneration() {
        minPF: parseFloat(document.getElementById('min-pf').value),
        minWR: parseFloat(document.getElementById('min-wr').value),
        maxDD: parseFloat(document.getElementById('max-dd').value),
-        minTrades: parseInt(document.getElementById('min-trades').value)
+        minTrades: parseInt(document.getElementById('min-trades').value),
+        // Walk-Forward Analysis settings
+        enableWalkForward: document.getElementById('enable-walkforward').checked,
+        trainingRatio: parseInt(document.getElementById('training-ratio').value) / 100
    };

    // Show progress section
@@ -469,9 +472,30 @@ function createStrategyCard(strategy, number) {
    const card = document.createElement('div');
    card.className = 'strategy-card';

+
+    // Generate walk-forward badge HTML (only if walk-forward was enabled and data exists)
+    let wfBadgeHTML = '';
+    if (strategy.walkForward && typeof strategy.walkForward === 'object') {
+        const wf = strategy.walkForward;
+        if (wf.robustness !== undefined && wf.passed !== undefined) {
+            const badgeClass = wf.passed ? 'wf-badge-pass' : 'wf-badge-fail';
+            const badgeIcon = wf.passed ? '✓' : '⚠';
+            const badgeText = wf.passed ? 'Robust' : 'Overfitted';
+            wfBadgeHTML = `
+                <div class="wf-badge ${badgeClass}" title="Robustness Score: ${wf.robustness}/100">
+                    <span class="wf-icon">${badgeIcon}</span>
+                    <span class="wf-text">${badgeText}</span>
+                    <span class="wf-score">${wf.robustness}</span>
+                </div>
+            `;
+        }
+    }
+
+    const name = `Strategy #${number}`;
    card.innerHTML = `
        <div class="strategy-header">
            <div class="strategy-name">${name}</div>
+            ${wfBadgeHTML}
            <input type="checkbox" class="strategy-select" onchange="toggleStrategySelection(${number - 1}, this.checked)">
        </div>
        <div class="strategy-metrics">
@@ -750,10 +774,41 @@ function formatTime(seconds) {
    return `${minutes}m ${secs}s`;
 }

+/**
+ * Update training/testing split display
+ */
+function updateTrainingSplit() {
+    const ratio = parseInt(document.getElementById('training-ratio').value);
+    document.getElementById('training-percent').textContent = ratio;
+
+    // Update bar counts if data is loaded
+    if (appData.csvData) {
+        const totalBars = appData.csvData.length;
+        const trainingBars = Math.floor(totalBars * (ratio / 100));
+        const testingBars = totalBars - trainingBars;
+
+        document.getElementById('training-bars').textContent = trainingBars.toLocaleString();
+        document.getElementById('testing-bars').textContent = testingBars.toLocaleString();
+    }
+}
+
+/**
+ * Toggle walk-forward settings visibility
+ */
+function toggleWalkForwardSettings() {
+    const enabled = document.getElementById('enable-walkforward').checked;
+    const settings = document.getElementById('walkforward-settings');
+    if (settings) {
+        settings.style.display = enabled ? 'block' : 'none';
+    }
+}
+
 // Explicitly expose functions to global scope for inline onclick handlers
 window.downloadStrategy = downloadStrategy;
 window.downloadAllStrategies = downloadAllStrategies;
 window.toggleStrategySelection = toggleStrategySelection;
 window.showComparison = showComparison;
+window.updateTrainingSplit = updateTrainingSplit;
+window.toggleWalkForwardSettings = toggleWalkForwardSettings;
 window.hideComparison = hideComparison;
 window.toggleCustomBarsInput = toggleCustomBarsInput;
@@ -100,6 +100,8 @@ class Strategy {
        newStrategy.closeAtOpposite = this.closeAtOpposite;
        newStrategy.metrics = this.metrics ? JSON.parse(JSON.stringify(this.metrics)) : {};
        newStrategy.fitness = this.fitness || 0;
+        // Copy walk-forward analysis results
+        newStrategy.walkForward = this.walkForward ? JSON.parse(JSON.stringify(this.walkForward)) : undefined;
        return newStrategy;
    }

@@ -0,0 +1,203 @@
+/**
+ * Walk-Forward Analysis Module
+ * Validates strategies on out-of-sample data to detect overfitting
+ */
+
+class WalkForwardAnalysis {
+    constructor(data, trainingRatio = 0.7) {
+        this.data = data;
+        this.trainingRatio = trainingRatio;
+        this.splitIndex = Math.floor(data.length * trainingRatio);
+    }
+
+    /**
+     * Split data into training and testing periods
+     * @returns {Object} { training: Array, testing: Array }
+     */
+    split() {
+        return {
+            training: this.data.slice(0, this.splitIndex),
+            testing: this.data.slice(this.splitIndex),
+            splitIndex: this.splitIndex,
+            trainingBars: this.splitIndex,
+            testingBars: this.data.length - this.splitIndex
+        };
+    }
+
+    /**
+     * Run walk-forward analysis on a strategy
+     * @param {Object} strategy - Strategy to analyze
+     * @param {string} symbol - Trading symbol
+     * @returns {Object} Analysis results
+     */
+    analyze(strategy, symbol = '') {
+        const { training, testing } = this.split();
+
+        // Backtest on training data
+        const trainingBacktest = new Backtester(training, strategy, symbol);
+        const trainingResults = trainingBacktest.run();
+
+        // Backtest on testing data
+        const testingBacktest = new Backtester(testing, strategy, symbol);
+        const testingResults = testingBacktest.run();
+
+        // Calculate degradation
+        const degradation = this.calculateDegradation(trainingResults, testingResults);
+
+        // Calculate robustness score
+        const robustnessScore = this.calculateRobustness(degradation, trainingResults, testingResults);
+
+        // Determine if strategy passed
+        const passed = robustnessScore >= 60;
+
+        return {
+            training: trainingResults,
+            testing: testingResults,
+            degradation: degradation,
+            robustness: robustnessScore,
+            passed: passed,
+            splitInfo: {
+                trainingBars: training.length,
+                testingBars: testing.length,
+                trainingRatio: this.trainingRatio
+            }
+        };
+    }
+
+    /**
+     * Calculate performance degradation between training and testing
+     * @param {Object} train - Training results
+     * @param {Object} test - Testing results
+     * @returns {Object} Degradation metrics
+     */
+    calculateDegradation(train, test) {
+        return {
+            profitFactor: this.calcPercentDegradation(train.profitFactor, test.profitFactor),
+            winRate: train.winRate - test.winRate,
+            maxDrawdown: test.maxDrawdown - train.maxDrawdown,
+            netProfit: this.calcPercentDegradation(train.netProfit, test.netProfit),
+            totalTrades: test.totalTrades,
+            avgWin: this.calcPercentDegradation(train.avgWin, test.avgWin),
+            avgLoss: this.calcPercentDegradation(train.avgLoss, test.avgLoss)
+        };
+    }
+
+    /**
+     * Calculate percentage degradation
+     * @param {number} trainValue - Training value
+     * @param {number} testValue - Testing value
+     * @returns {number} Degradation percentage
+     */
+    calcPercentDegradation(trainValue, testValue) {
+        if (trainValue === 0) return 0;
+        return ((trainValue - testValue) / trainValue * 100);
+    }
+
+    /**
+     * Calculate robustness score (0-100)
+     * Higher score = more robust strategy
+     * @param {Object} degradation - Degradation metrics
+     * @param {Object} train - Training results
+     * @param {Object} test - Testing results
+     * @returns {number} Robustness score
+     */
+    calculateRobustness(degradation, train, test) {
+        // Profit Factor score (40% weight)
+        // Lower degradation = higher score
+        const pfDeg = Math.abs(degradation.profitFactor);
+        let pfScore = 100;
+        if (pfDeg > 50) pfScore = 0;
+        else if (pfDeg > 30) pfScore = 30;
+        else if (pfDeg > 15) pfScore = 60;
+        else pfScore = 100;
+
+        // Win Rate score (30% weight)
+        const wrDeg = Math.abs(degradation.winRate);
+        let wrScore = 100;
+        if (wrDeg > 20) wrScore = 0;
+        else if (wrDeg > 10) wrScore = 40;
+        else if (wrDeg > 5) wrScore = 70;
+        else wrScore = 100;
+
+        // Drawdown score (30% weight)
+        // For drawdown, increase is bad
+        const ddDeg = degradation.maxDrawdown;
+        let ddScore = 100;
+        if (ddDeg > 15) ddScore = 0;
+        else if (ddDeg > 10) ddScore = 40;
+        else if (ddDeg > 5) ddScore = 70;
+        else if (ddDeg < -5) ddScore = 100; // Better drawdown in testing
+        else ddScore = 85;
+
+        // Additional checks
+        // Penalize if testing has too few trades
+        let tradesPenalty = 0;
+        if (test.totalTrades < 20) {
+            tradesPenalty = 20;
+        } else if (test.totalTrades < 30) {
+            tradesPenalty = 10;
+        }
+
+        // Bonus if testing performs better
+        let bonus = 0;
+        if (test.profitFactor > train.profitFactor && test.winRate >= train.winRate) {
+            bonus = 10;
+        }
+
+        // Weighted average
+        const score = (pfScore * 0.4) + (wrScore * 0.3) + (ddScore * 0.3) - tradesPenalty + bonus;
+
+        return Math.max(0, Math.min(100, Math.round(score)));
+    }
+
+    /**
+     * Get degradation severity level
+     * @param {number} value - Degradation value
+     * @param {boolean} inverse - If true, higher is worse (for drawdown)
+     * @returns {string} 'good', 'warning', or 'bad'
+     */
+    getDegradationLevel(value, inverse = false) {
+        const absValue = Math.abs(value);
+
+        if (inverse) {
+            // For drawdown increase
+            if (value < 0) return 'good'; // Improved
+            if (absValue < 5) return 'good';
+            if (absValue < 10) return 'warning';
+            return 'bad';
+        } else {
+            // For profit factor, win rate degradation
+            if (absValue < 10) return 'good';
+            if (absValue < 20) return 'warning';
+            return 'bad';
+        }
+    }
+
+    /**
+     * Generate summary text for walk-forward results
+     * @param {Object} results - Walk-forward results
+     * @returns {string} Summary text
+     */
+    generateSummary(results) {
+        const { robustness, passed, degradation } = results;
+
+        if (passed) {
+            if (robustness >= 80) {
+                return 'Excellent! Strategy shows strong robustness with minimal overfitting.';
+            } else if (robustness >= 70) {
+                return 'Good! Strategy performs well on out-of-sample data.';
+            } else {
+                return 'Acceptable. Strategy shows reasonable robustness but monitor performance.';
+            }
+        } else {
+            if (robustness < 40) {
+                return 'Warning! High overfitting risk. Strategy may not perform well in live trading.';
+            } else {
+                return 'Caution. Strategy shows some overfitting. Consider re-optimization or more data.';
+            }
+        }
+    }
+}
+
+// Export for use in other modules
+window.WalkForwardAnalysis = WalkForwardAnalysis;
@@ -191,6 +191,7 @@
                <li><a href="#export">Exporting Data from MT4/MT5</a></li>
                <li><a href="#upload">Uploading Data</a></li>
                <li><a href="#config">Configuring Strategy Generation</a></li>
+                <li><a href="#walkforward">Walk-Forward Analysis</a></li>
                <li><a href="#generate">Generating Strategies</a></li>
                <li><a href="#results">Viewing Results</a></li>
                <li><a href="#download">Downloading Strategies</a></li>
@@ -338,6 +339,102 @@
            </tbody>
        </table>

+        <h3 id="walkforward">🔬 Walk-Forward Analysis</h3>
+        <p>Walk-forward analysis validates strategies on out-of-sample data to detect overfitting and ensure real-world
+            performance.</p>
+
+        <div class="alert alert-info">
+            <strong>What is Overfitting?</strong> A strategy that performs well on historical data but fails in live
+            trading due to being too closely fitted to past price patterns.
+        </div>
+
+        <h4>How It Works</h4>
+        <ol>
+            <li><strong>Data Splitting:</strong> Historical data is divided into training and testing periods</li>
+            <li><strong>Training Period:</strong> Strategy is optimized on this data (e.g., 70% of bars)</li>
+            <li><strong>Testing Period:</strong> Strategy is validated on unseen data (e.g., 30% of bars)</li>
+            <li><strong>Performance Comparison:</strong> Metrics are compared between training and testing</li>
+            <li><strong>Robustness Score:</strong> A score (0-100) indicates how well the strategy generalizes</li>
+        </ol>
+
+        <h4>Configuration</h4>
+        <ul>
+            <li><strong>Enable Walk-Forward Validation:</strong> Check this box to activate the feature</li>
+            <li><strong>Training Period:</strong> Adjust the slider (50-90%, default: 70%)
+                <ul>
+                    <li>Higher ratio = More data for training, less for validation</li>
+                    <li>Lower ratio = Less training data, more for validation</li>
+                    <li>Recommended: 70% for most cases</li>
+                </ul>
+            </li>
+        </ul>
+
+        <h4>Understanding the Badges</h4>
+        <p>Each strategy card displays a walk-forward badge showing its robustness:</p>
+        <table>
+            <thead>
+                <tr>
+                    <th>Badge</th>
+                    <th>Score Range</th>
+                    <th>Meaning</th>
+                    <th>Recommendation</th>
+                </tr>
+            </thead>
+            <tbody>
+                <tr>
+                    <td>✓ ROBUST (Green)</td>
+                    <td>60-100</td>
+                    <td>Strategy passed validation</td>
+                    <td>Safe to use for live trading</td>
+                </tr>
+                <tr>
+                    <td>⚠ OVERFITTED (Orange)</td>
+                    <td>0-59</td>
+                    <td>Strategy failed validation</td>
+                    <td>Avoid - likely curve-fitted</td>
+                </tr>
+            </tbody>
+        </table>
+
+        <h4>Robustness Score Interpretation</h4>
+        <ul>
+            <li><strong>80-100:</strong> Excellent - Minimal degradation, high confidence</li>
+            <li><strong>60-79:</strong> Good - Acceptable degradation, suitable for trading</li>
+            <li><strong>40-59:</strong> Moderate - Concerning degradation, needs review</li>
+            <li><strong>0-39:</strong> Poor - High overfitting risk, avoid</li>
+        </ul>
+
+        <h4>What Gets Measured</h4>
+        <p>The robustness score is calculated based on degradation in:</p>
+        <ul>
+            <li><strong>Profit Factor:</strong> How much profit factor drops in testing vs. training</li>
+            <li><strong>Win Rate:</strong> Percentage point decrease in win rate</li>
+            <li><strong>Max Drawdown:</strong> Increase in maximum drawdown</li>
+            <li><strong>Trade Count:</strong> Sufficient trades in testing period</li>
+        </ul>
+
+        <div class="alert alert-warning">
+            <strong>Important:</strong> A strategy with excellent training performance but poor testing performance is
+            likely overfitted and should be avoided.
+        </div>
+
+        <h4>Best Practices</h4>
+        <ul>
+            <li>Use at least 1,000 bars of data (minimum 300 for testing)</li>
+            <li>Keep training ratio at 70% for balanced results</li>
+            <li>Only trade strategies with robustness score ≥ 60</li>
+            <li>Prefer strategies with scores above 80 for higher confidence</li>
+            <li>If all strategies fail, try different data or settings</li>
+        </ul>
+
+        <h4>Impact on Strategy Generation</h4>
+        <p>When walk-forward is enabled:</p>
+        <ul>
+            <li><strong>Failed strategies:</strong> Receive 50% fitness penalty (less likely to be selected)</li>
+            <li><strong>Robust strategies:</strong> Receive up to 50% fitness bonus (prioritized)</li>
+            <li><strong>Result:</strong> GA naturally evolves toward robust, non-overfitted strategies</li>
+        </ul>
+
        <h2 id="generate">🎯 Generating Strategies</h2>
        <ol>
            <li>Review your settings</li>