pine-script - 使用 EMA 进行 Pinescript 回测

Question

这个脚本有什么问题

这就是我想要的

1. 当 5 EMA 下穿 10 EMA 和 10 EMA 下穿 150 EMA 时做空我的头寸
2. 当 5 EMA 超过 10 EMA 时覆盖

请建议我错过了什么

谢谢

ema5 = ema(close, 5)
ema10 = ema(close, 10)
ema150 = ema(close, 150)

plot (ema5, title ="EMA5", color = color.green, linewidth = 2)
plot (ema10, title ="EMA10", color = color.red, linewidth = 2)
plot (ema150, title ="EMA150", color = color.black, linewidth = 2)

_5CrossesUnder10 = crossunder(ema5, ema10)
_10CrossesUnder150 = crossunder(ema10, ema150)
ShortCondition = _5CrossesUnder10 and _10CrossesUnder150

_5CrossesAbove10 = crossover(ema5, ema10)

// plot(close)

strategy.entry("Short", strategy.short, 1, when= ShortCondition)
strategy.close("Cover", when= _5CrossesAbove10)```

标签： pine-script

Answer 1

该术语Short是ID您的交易。
您必须使用ID它来关闭它。
您正试图以ID Cover从未打开的方式关闭交易。
请参阅strategy.close()函数定义。

这应该有效：

//@version=4
strategy("My Strategy", overlay=true)
ema5 = ema(close, 5)
ema10 = ema(close, 10)
ema150 = ema(close, 150)

plot (ema5, title ="EMA5", color = color.green, linewidth = 2)
plot (ema10, title ="EMA10", color = color.red, linewidth = 2)
plot (ema150, title ="EMA150", color = color.black, linewidth = 2)

_5CrossesUnder10 = crossunder(ema5, ema10)
_10CrossesUnder150 = crossunder(ema10, ema150)
ShortCondition = _5CrossesUnder10 and _10CrossesUnder150

_5CrossesAbove10 = crossover(ema5, ema10)

// plot(close)

strategy.entry("Short", strategy.short, 1, when= ShortCondition)
strategy.close("Short", when= _5CrossesAbove10)