pinescript獲取pivothigh的索引

Question

我想獲取最后一次出現 pivothigh 的條形索引，以便我可以將它用於 plot 一個從該索引開始的指標。 對pinescript不熟悉，參考文獻有限

Answer 1

您可以使用內置的barssince function 並在歷史參考運算符[]中使用結果

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

但是，默認情況下，您的樞軸在 10 個柱后觸發，將leftbars值添加到 barsisnce 結果以顯示高/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)