[英]Get Highest high and lowest low in every last Moving Average Cross like ZigZag
[英]How can I plot a line between last highest high and last lowest low?
我想 plot 在最后一個最高點和最后一個最低點之間畫一條線,我使用 valuewhen 來獲取該值,但由於我不知道的原因,它給了我之前的值,這意味着該線將總是拿着蠟燭遲到。
//@version=4
study("My Script", overlay = true)
upper = highest(high, 20)
lower = lowest(low, 20)
plot(upper)
plot(lower)
val_u = valuewhen(upper > upper[1], upper, 0)
val_l = valuewhen(lower < lower[1], lower, 0)
plot(val_u, color = color.red)
plot(val_l, color = color.red)
barss_u = barssince(upper > upper[1])
barss_l = barssince(lower < lower[1])
l = line.new(bar_index[barss_u], val_u, bar_index[barss_l], val_l, width = 1, color = color.orange, style=line.style_dashed)
line.delete(l[1])
看起來是這樣的,紅線是valuewhen,藍線是高/低位,橙色線應該是last lower low 和 last high high high 之間的連接線,但是不知什么原因,valuewhen不會實時更新。
這就是valuewhen
的工作方式,它不考慮當前柱。 改為嘗試highestbars
和lowestbars
:
//@version=4
study("My Script", overlay = true)
barss_u = highestbars(20) * -1
barss_l = lowestbars(20) * -1
val_u = high[barss_u]
val_l = low[barss_l]
l = line.new(bar_index[barss_u], val_u, bar_index[barss_l], val_l, width = 1, color = color.orange, style=line.style_dashed)
line.delete(l[1])
更新
您可以使用以下代碼修復valuewhen
的滯后:
//@version=4
study("My Script", overlay = true)
upper = highest(high, 20)
lower = lowest(low, 20)
plot(upper)
plot(lower)
x_val_u = valuewhen(upper > upper[1], upper, 0)
x_val_l = valuewhen(lower < lower[1], lower, 0)
val_u = high >= upper ? high : x_val_u
val_l = low <= lower ? low : x_val_l
plot(val_u, color = color.red)
plot(val_l, color = color.red)
barss_u = barssince(upper > upper[1])
barss_l = barssince(lower < lower[1])
l = line.new(bar_index[barss_u], val_u, bar_index[barss_l], val_l, width = 1, color = color.orange, style=line.style_dashed)
line.delete(l[1])
綠線顯示了這個新版本的工作原理:
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