میانگین متحرک نمایی

//@version=5
strategy("ETH 4H EMA-RSI-Volume", overlay=true,
initial_capital=5000,
default_qty_type=strategy.percent_of_equity,
default_qty_value=50,
commission_type=strategy.commission.percent,
commission_value=0.06,
slippage=2)

// اندیکاتورها
ema20 = ta.ema(close, 20)
ema50 = ta.ema(close, 50)
ema200 = ta.ema(close, 200)
rsi = ta.rsi(close, 14)
volOk = volume > ta.sma(volume, 20)

swingLow = ta.lowest(low, 10)
swingHigh = ta.highest(high, 10)

// سیگنال‌ها
lo