mirror of
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.
44 lines
1.3 KiB
Plaintext
44 lines
1.3 KiB
Plaintext
// The MIT License (MIT)
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// © mihakralj
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//@version=6
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indicator("Volume Force (VF)", "VF", overlay=false)
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//@function Calculates Volume Force, measuring the force of volume behind price movements
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//@param len Smoothing period (default: 14)
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//@param src Source price for calculation (default: close)
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//@param src_vol Volume data (default: volume)
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//@returns float The Volume Force value
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vf(simple int len, series float src = close, series float src_vol = volume) =>
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float price_change = src - nz(src[1], src)
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float raw_vf = price_change * nz(src_vol, 0.0)
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float alpha = 2.0 / (len + 1)
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var bool warmup = true
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var float e = 1.0
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var float ema_val = 0.0
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var float vf_result = raw_vf
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ema_val := alpha * (raw_vf - ema_val) + ema_val
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if warmup
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e *= (1.0 - alpha)
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float compensator = 1.0 / (1.0 - e)
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vf_result := compensator * ema_val
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warmup := e > 1e-10
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else
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vf_result := ema_val
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vf_result
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// ---------- Main Calculation ----------
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// Parameters
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length = input.int(14, "Smoothing Period", minval=1)
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// Calculation
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vf_line = vf(length, close, volume)
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// ---------- Plots ----------
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plot(vf_line, "Volume Force", color=color.yellow, linewidth=2)
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hline(0, "Zero Line", color.gray, linestyle=hline.style_dashed)
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// Color zones for visual clarity
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bgcolor(vf_line > 0 ? color.green : color.red)
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