当指标 ema 的值首先增加或减少时尝试绘制形状

Question

我是松树的新手，对此遇到了麻烦。它可能是语法或不正确的计算。代码如下：

buySignal = input.bool(true,title='Buy Signal')
sellSignal = input.bool(true,title='Sell Signal')

plotshape(buySignal ? lenema > lenema[1] and lenema[1] < lenema[2]: na,title='Buy Shape', style=shape.triangleup,color=color.green, location=location.belowbar,size=size.large)

plotshape(sellSignal ? lenema < lenema[1] and lenema[1] > lenema[2]: na,title='Sell Shape',style=shape.triangledown,color=color.red, location=location.abovebar,size=size.large)

当指标 ema 的值首先增加或减少时尝试绘制形状

以前的代码是：

// RSI code
rsi = ta.rsi(close, len)
plot(rsi, color=color.new(color.white, 0), linewidth=3)
plot(rsi)


lenema = input.int(200, minval=1, title='RSI EMA Length')
out = ta.ema(rsi, lenema)
col = out >= out[1] ? color.lime : color.red
plot(out, title='RSI EMA', color=col, linewidth=2)

Answer 1

看起来您正在比较length。 lenema 是 input.int 并且它将保持不变，这就是为什么您的比较不起作用的原因。

你可能想要：

plotshape(buySignal ? (out > out[1] and out[1] < out[2]) : na,title='Buy Shape', style=shape.triangleup,color=color.green, location=location.belowbar,size=size.large)

plotshape(sellSignal ? (out < out[1] and out[1] > out[2]) : na,title='Sell Shape',style=shape.triangledown,color=color.red, location=location.abovebar,size=size.large)

在 RSI 线上打印三角形：

plotshape((buySignal and (out > out[1] and out[1] < out[2])) ? rsi : na,title='Buy Shape', style=shape.triangleup,color=color.green, location=location.absolute,size=size.large)

plotshape((sellSignal and (out < out[1] and out[1] > out[2])) ? rsi : na,title='Sell Shape',style=shape.triangledown,color=color.red, location=location.abovebar,size=size.large)

Answer 2

Screen capture because it was easier than pasting the text