mirror of
https://github.com/mihakralj/QuanTAlib.git
synced 2026-08-18 18:48:05 +00:00
Miha Kralj
24e86d762a
- Updated BBWN, BBWP, CCV, CV, CVI, EWMA, GKV, HLV, HV, Jvolty, JVOLTYN, MASSI, NATR, RSV, RV, RVI, TR, UI, VOV, VR, YZV indicators with documentation links. - Added documentation links for Aberration, Acceleration Bands, Andrews' Pitchfork, Adaptive Price Zone, ATR Bands, Bollinger Bands, Center of Gravity, Donchian Channels, Decay Min-Max Channel, Detrended Synthetic Price, EACP, EBSW, HOMOD, Jurik Volatility Bands, Keltner Channel, MA Envelope, Min-Max Channel, Price Channel, Regression Channels, Standard Deviation Channel, Stoller Average Range Channel, Super Trend Bands, Ultimate Bands, Ultimate Channel, VWAP Bands, and VWAP with Standard Deviation Bands.
61 lines
2.6 KiB
Plaintext
61 lines
2.6 KiB
Plaintext
// The MIT License (MIT)
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// © mihakralj
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//@version=6
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indicator("Swing High/Low Detection", "SWINGS", overlay=true)
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//@function Detects swing highs and swing lows using lookback period
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//@param lookback Number of bars on each side to confirm swing point
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//@param source_high Price series for swing high detection (typically high)
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//@param source_low Price series for swing low detection (typically low)
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//@returns Tuple [swing_high, swing_low] with swing point values (na if no swing)
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swings(simple int lookback, series float source_high, series float source_low) =>
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if lookback <= 0
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runtime.error("Lookback must be greater than 0")
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if lookback > 100
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runtime.error("Lookback exceeds maximum of 100")
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bool is_swing_high = true
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bool is_swing_low = true
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if bar_index < lookback * 2
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is_swing_high := false
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is_swing_low := false
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else
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float center_high = source_high[lookback]
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float center_low = source_low[lookback]
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for i = 1 to lookback
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if source_high[lookback - i] > center_high or source_high[lookback + i] > center_high
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is_swing_high := false
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if source_low[lookback - i] < center_low or source_low[lookback + i] < center_low
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is_swing_low := false
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float swing_high_value = is_swing_high ? source_high[lookback] : na
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float swing_low_value = is_swing_low ? source_low[lookback] : na
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[swing_high_value, swing_low_value]
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// ---------- Main loop ----------
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// Inputs
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i_lookback = input.int(5, "Lookback Period", minval=1, maxval=100, tooltip="Number of bars on each side to confirm swing point")
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i_source_high = input.source(high, "Source High", tooltip="Price series for swing high detection")
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i_source_low = input.source(low, "Source Low", tooltip="Price series for swing low detection")
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i_show_high = input.bool(true, "Show Swing High Lines")
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i_show_low = input.bool(true, "Show Swing Low Lines")
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i_color_high = input.color(color.red, "Swing High Color")
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i_color_low = input.color(color.green, "Swing Low Color")
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// Calculation
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[swing_high, swing_low] = swings(i_lookback, i_source_high, i_source_low)
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// Track last confirmed swing points
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var float last_swing_high = na
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var float last_swing_low = na
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// Update swing levels
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if not na(swing_high)
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last_swing_high := swing_high
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if not na(swing_low)
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last_swing_low := swing_low
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// Plot swing levels as continuous lines
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plot(i_show_high ? last_swing_high : na, "Swing High", color=i_color_high, linewidth=2, style=plot.style_line)
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plot(i_show_low ? last_swing_low : na, "Swing Low", color=i_color_low, linewidth=2, style=plot.style_line)
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