pinescript获取pivothigh的索引

Question

我想获取最后一次出现 pivothigh 的条形索引，以便我可以将它用于 plot 一个从该索引开始的指标。 对pinescript不熟悉，参考文献有限

Answer 1

您可以使用内置的barssince function 并在历史参考运算符[]中使用结果

barssincePhigh = barssince(phigh)
barssincePlow = barssince(plow)

但是，默认情况下，您的枢轴在 10 个柱后触发，将leftbars值添加到 barsisnce 结果以显示高/低 pivot：

//@version=4
study("Pivot Prices", overlay=true)

leftbars = input(10, minval=1, title='Bars to the left')
rightbars = input(10, minval=1, title='Bars to the right')

phigh = pivothigh(high, leftbars, rightbars)
plow = pivotlow(low, leftbars, rightbars)

barssincePhigh = barssince(phigh) + leftbars
barssincePlow = barssince(plow) + leftbars

if phigh
    label1 = label.new(bar_index[barssincePhigh], high[barssincePhigh], text=tostring(high[barssincePhigh]), style = label.style_labeldown, color = color.orange)

if plow
    label2 = label.new(bar_index[barssincePlow], low[barssincePlow], text=tostring(low[barssincePlow]), style = label.style_labelup, color = color.green)