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TradingView Pine Script indicator for Pivot points and Support-Resistance lines
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//@version=5 | |
indicator("Pivot SRs", overlay=true) | |
lookback = input.int(12, "Lookaround bars") | |
number_of_lines = input.int(5, "Lines to keep") | |
getLastNonNaInfo(series) => | |
float lastValue = na | |
int lastIndex = na | |
for i = 0 to 1000 // Adjust the range as necessary | |
if not na(series[i]) | |
lastValue := series[i] | |
lastIndex := bar_index[i] | |
break // Exit loop after finding the last non-na value | |
[lastValue, lastIndex] | |
ph = ta.pivothigh(high, lookback, lookback) | |
pl = ta.pivotlow(low, lookback, lookback) | |
combined = nz(na(ph)) ? pl : ph | |
plotshape(ph, title="Highs", color=color.red, style=shape.triangledown, size=size.tiny, offset=-lookback, location=location.abovebar) | |
plotshape(pl, title="Lows", color=color.green, style=shape.triangleup, size=size.tiny, offset=-lookback, location=location.belowbar) | |
var line[] lines = array.new_line(0) | |
[last_pl, last_pl_bar] = getLastNonNaInfo(pl) | |
[last_ph, last_ph_bar] = getLastNonNaInfo(ph) | |
if (not na(ph)) | |
ph_line = line.new(last_bar_index, high[lookback], last_ph_bar - lookback, high[lookback], color=color.orange, extend=extend.left) | |
array.unshift(lines, ph_line) | |
if (not na(pl)) | |
pl_line = line.new(last_bar_index, low[lookback], last_pl_bar - lookback, low[lookback], color=color.orange, extend=extend.left) | |
array.unshift(lines, pl_line) | |
if (array.size(lines) >= number_of_lines) | |
line.delete(array.pop(lines)) // Remove the oldest line first if there are already two lines | |
var label[] labels = array.new_label(0) | |
if (not na(ph)) | |
ph_label = label.new(bar_index - lookback, high[lookback], str.tostring(high[lookback],"#.##"), style=label.style_none, yloc=yloc.abovebar, textcolor = color.white) | |
array.unshift(labels, ph_label) | |
if (not na(pl)) | |
pl_label = label.new(bar_index - lookback, low[lookback], str.tostring(low[lookback],"#.##"), style=label.style_none, yloc=yloc.belowbar, textcolor = color.white) | |
array.unshift(labels, pl_label) | |
if (array.size(labels) > number_of_lines) | |
label.delete(array.pop(labels)) |
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