GearTrade MCP Server

/** * Donchian Channels Indicator * Channels based on highest high and lowest low over a period */ export function calculateDonchianChannels(highs, lows, period = 20) { // Minimum 3 data points required if (highs.length < 3 || lows.length < 3) { return { upper: null, middle: null, lower: null, position: null, }; } // Use adaptive period const effectivePeriod = Math.min(period, highs.length); // Calculate the most recent channel const recentHighs = highs.slice(-effectivePeriod); const recentLows = lows.slice(-effectivePeriod); const upper = Math.max(...recentHighs); const lower = Math.min(...recentLows); const middle = (upper + lower) / 2; return { upper, middle, lower, position: null, // Will be set by caller with current price }; }