Rango verdadero promedio (ATR)

//@version=6
strategy("Average True Range (ATR)", overlay=true)
atrLen = input.int(14, "ATR Length")
atrMult = input.float(2.0, "ATR Mult")
emaLen = input.int(50, "Trend EMA")
ema = ta.ema(close, emaLen)
atr = ta.atr(atrLen)
longSignal = ta.crossover(close, ema)
stop = strategy.position_avg_price - atr * atrMult
if longSignal
    strategy.entry("Long", strategy.long)
strategy.exit("ATR Exit", "Long", stop=stop)
plot(ema, "EMA", color=color.new(color.orange, 0))

input atrLength = 14;
input emaLength = 50;
def atrVal = ATR(atrLength);
def emaVal = ExpAverage(close, emaLength);
def buySignal = close crosses above emaVal;
def sellSignal = close < emaVal - (2 * atrVal);
AddOrder(OrderType.BUY_AUTO, buySignal, close, 1, Color.GREEN, Color.GREEN, "ATR Buy");
AddOrder(OrderType.SELL_AUTO, sellSignal, close, 1, Color.RED, Color.RED, "ATR Exit");
plot EMA = emaVal;
EMA.SetDefaultColor(Color.ORANGE);