EMA Crossover Strategy

This strategy calculates two exponential moving averages from closing prices and plots them over the price chart: the faster average in green and the slower average in orange. When the fast average crosses above the slow average, it submits a simulated long entry; when it crosses below, it submits a simulated short entry. An opposite-direction entry can reverse the existing position. Traders can change the fast and slow average lengths, each set to 9 and 21 by default and constrained to values from 1 to 500. No alerts or separate stop-loss or take-profit orders are defined.