import { RSIOptions } from '../../schemas/RSIOptionsSchema';
import { RSIResult } from '../../schemas/RSIResultSchema';
/**
 * Calculate Relative Strength Index (RSI)
 *
 * RSI is a momentum oscillator that measures the speed and magnitude of price changes.
 * It oscillates between 0 and 100 and is used to identify overbought (>70) and
 * oversold (<30) conditions.
 *
 * Formula:
 * 1. Calculate price changes: change = price[i] - price[i-1]
 * 2. Separate gains and losses: gain = max(change, 0), loss = max(-change, 0)
 * 3. Calculate average gains and losses using exponential smoothing
 * 4. Calculate RS = averageGain / averageLoss
 * 5. Calculate RSI = 100 - (100 / (1 + RS))
 *
 * @param options - RSI calculation options
 * @returns RSI calculation result
 *
 * @example
 * ```typescript
 * const prices = [10, 12, 11, 13, 14, 12, 15, 16, 14, 13];
 * const result = calculateRSI({ prices, period: 3 });
 * console.log(result.rsi); // [100, 33.33, 66.67, 75, 25, 66.67, 75, 25, 33.33]
 * ```
 */
export declare function calculateRSI(options: RSIOptions): RSIResult;