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https://github.com/mihakralj/QuanTAlib.git
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Miha Kralj
26 lines
822 B
Plaintext
26 lines
822 B
Plaintext
// Licensed under the Apache License, Version 2.0
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// © mihakralj
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//@version=6
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indicator("On Balance Volume (OBV)", "OBV", overlay=false)
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//@function Calculates On Balance Volume
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//@param c Close price series
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//@param vol Volume series
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//@returns Cumulative On Balance Volume value
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//@optimized for performance and dirty data
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obv(series float c = close, series float vol = volume) =>
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float close_price = nz(c, close)
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float volume_val = nz(vol, 0.0)
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float prev_close = nz(close_price[1], close_price)
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var float obv_cumulative = 0.0
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obv_cumulative += close_price > prev_close ? volume_val : close_price < prev_close ? -volume_val : 0.0
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obv_cumulative
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// ---------- Main loop ----------
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// Calculation
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obv_value = obv(close, volume)
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// Plot
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plot(obv_value, "OBV", color=color.yellow, linewidth=2)
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