PineScript问题：RSI绘图过大，如何移至底部并缩小？

修改后的完整代码 #

//@version=5
strategy("Simple MA Strategy", overlay=true, initial_capital=10000)

// Date range
startDate = timestamp(2000, 01, 01, 0, 0, 0)

// Define inputs
ema1Value = input(title="EMA 1", defval=50)
ema1Source = input(title="EMA 1 Source", defval=close)
ema2Value = input(title="EMA 2",defval=200)
ema2Source = input(title="EMA 2 Source", defval=close)
rsiSource = input(title="RSI Source", defval=close)
rsiLength = input(title="RSI Length",defval=14)
rsiOverboughtLevel = input(title="RSI Overbought Level", defval=70)
rsiOversoldLevel = input(title="RSI Oversold Level", defval=30)

// Indicators
ema1 = ta.ema(ema1Source, ema1Value)
ema2= ta.ema(ema2Source, ema2Value)
// 移除重复RSI计算，保留参数化的rsiValue
rsiValue = ta.rsi(rsiSource, rsiLength)

// Rules
ema_crossover = ta.crossover(ema1, ema2)
ema_crossunder = ta.crossunder(ema1, ema2)
isRsiOverbought = rsiValue >= rsiOverboughtLevel
isRsiOversold = rsiValue <= rsiOversoldLevel


// Plot indicators & levels
plot(ema1, color=color.green,linewidth = 1)
plot(ema2, color=color.fuchsia,linewidth = 1)

// 关键改动：添加subplot=true将RSI移至独立子图
plot(rsiValue, "RSI", color=color.rgb(0, 18, 212), subplot=true)
// 修正超买超卖线的数值与标签对应错误
rsiOverboughtLine = hline(rsiOverboughtLevel, "OverBought", color=#C0C0C0)
rsiOversoldLine = hline(rsiOversoldLevel, "Oversold", color=#C0C0C0)
fill(rsiOverboughtLine, rsiOversoldLine, color=color.rgb(147, 163, 208, 86), title="Background")

核心改动说明 #

• 将RSI移至底部子图：在plot(rsiValue)中添加subplot=true参数。由于你设置了strategy(..., overlay=true)，默认所有绘图会叠加在价格主图上，但RSI数值范围为0-100，和价格（通常远大于100）不在同一量级，导致显示异常。subplot=true会将RSI单独放在主图下方的独立子图中，自动适配其数值范围。
• 移除冗余计算：原代码重复计算了两次RSI，保留参数化的rsiValue即可，避免不必要的性能消耗。
• 修正超买超卖线错误：原代码中超买线和超卖线的数值与标签写反，现在调整为数值与标签一一对应，逻辑更准确。

内容的提问来源于stack exchange，提问作者checkmate711