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https://github.com/mihakralj/QuanTAlib.git
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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.
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
// The MIT License (MIT)
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// © mihakralj
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//@version=6
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indicator("Williams %R (WILLR)", "WILLR", overlay=false)
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//@function Calculates Williams %R oscillator
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//@param period Lookback period for highest high and lowest low calculation
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//@returns Williams %R value (-100 to 0 scale)
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willr(simple int period) =>
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if period <= 0
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runtime.error("Period must be positive")
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var array<float> high_buffer = array.new_float(period, na)
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var array<float> low_buffer = array.new_float(period, na)
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var int head = 0, var int count = 0
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idx = head % period
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old_high = array.get(high_buffer, idx)
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if not na(old_high)
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count := count - 1
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array.set(high_buffer, idx, high)
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array.set(low_buffer, idx, low)
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count := count + 1
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head := head + 1
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highest_high = array.max(high_buffer)
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lowest_low = array.min(low_buffer)
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range_val = highest_high - lowest_low
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range_val > 0 ? -100 * (highest_high - close) / range_val : -50
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// ---------- Main loop ----------
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// Inputs
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i_period = input.int(14, "Period", minval=1, maxval=100, tooltip="Lookback period for highest high and lowest low calculation")
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// Calculation
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willr_value = willr(i_period)
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// Plots
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plot(willr_value, "Williams %R", color=color.yellow, linewidth=2)
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