Crossover 和 crossunder 函数不尊重我给 pine 脚本的参数

问题描述

我试图在随机时添加一个简单的背景颜色，k 在任何时候都穿过 d 但当 k 大于 80 时，同样地，当 k 小于 20 时，k 在任何时候都穿过 d。

然而，在这种情况下，我不断收到交叉和交叉信号。在图片中的这种情况下，根本没有交叉。

谁能帮我解释为什么会这样？

谢谢

//@version=4
study(title="stochastic RSI",shorttitle="Stoch RSI",format=format.price,precision=2,resolution="")
smoothK = input(3,"K",minval=1)
smoothD = input(3,"D",minval=1)
lengthRSI = input(14,"RSI Length",minval=1)
lengthStoch = input(14,"stochastic Length",minval=1)
cross = input(false,"Highlight Only Crosses in Ob & Os Areas")
src = input(close,title="RSI Source")
rsi1 = rsi(src,lengthRSI)
k = sma(stoch(rsi1,rsi1,lengthStoch),smoothK)
d = sma(k,smoothD)
plot(k,color=#0094FF)
plot(d,color=#FF6A00)
h0 = hline(80,"Upper Band",color=#606060)
h1 = hline(20,"Lower Band",color=#606060)
fill(h0,h1,color=#9915FF,transp=80,title="Background")

col_ = (k > 80 and crossover(k,d)) or (k < 20 and crossunder(k,d))
         ? na
     : crossunder(k,d)
         ? #d7000080
     : crossover(k,d)
         ? #00d70080
     : na

bgcolor(col_)

解决方法

//@version=4
study(title="Help (Stochastic RSI)",shorttitle="Stoch RSI",format=format.price,precision=2,resolution="")
smoothK = input(3,"K",minval=1)
smoothD = input(3,"D",minval=1)
lengthRSI = input(14,"RSI Length",minval=1)
lengthStoch = input(14,"Stochastic Length",minval=1)
cross = input(false,"Highlight Only Crosses in Ob & Os Areas")
src = input(close,title="RSI Source")
rsi1 = rsi(src,lengthRSI)
k = sma(stoch(rsi1,rsi1,lengthStoch),smoothK)
d = sma(k,smoothD)
plot(k,color=#0094FF)
plot(d,color=#FF6A00)
h0 = hline(80,"Upper Band",color=#606060)
h1 = hline(20,"Lower Band",color=#606060)
fill(h0,h1,color=#9915FF,transp=80,title="Background")

//col_ = (k > 20 and crossover(d,k)) ? #d7000080 : ((k < 80 and crossunder(d,k)) ? #00d70080 : na)
col_ = (k > 20 and k[1]<d[1] and k[0]>d[0]) ? #d7000080 : ((k < 80 and k[1]>d[1] and k[0]<d[0]) ? #00d70080 : na)

bgcolor(col_)