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https://github.com/mihakralj/QuanTAlib.git
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Miha Kralj
86fe32a682
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com> Co-authored-by: aider (openrouter/anthropic/claude-sonnet-4) <aider@aider.chat> Co-authored-by: Warp <agent@warp.dev>
38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
// The MIT License (MIT)
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// © mihakralj
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//@version=6
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indicator("Volume Rate of Change (VROC)", "VROC", overlay=false)
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//@function Calculates Volume Rate of Change
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//@doc https://github.com/mihakralj/pinescript/blob/main/indicators/volume/vroc.md
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//@param vol Volume series for rate of change calculation
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//@param period Number of periods for comparison
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//@param calc_type Calculation type: true for percentage, false for point change
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//@returns Volume Rate of Change value
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//@optimized for performance and dirty data
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vroc(simple int period, simple bool calc_type, series float vol = volume) =>
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if period <= 0
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runtime.error("Period must be greater than 0")
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float current_volume = vol
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float historical_volume = vol[period]
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if na(current_volume) or na(historical_volume)
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na
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else if calc_type
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historical_volume != 0.0 ? ((current_volume - historical_volume) / historical_volume) * 100.0 : na
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else
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current_volume - historical_volume
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// ---------- Main loop ----------
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// Inputs
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i_period = input.int(12, "Period", minval=1, tooltip="Number of periods for comparison")
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i_calc_type = input.string("Point", "Calculation Type", options=["Point", "Percent"], tooltip="Point or Percent calculation")
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// Calculation
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is_percent = i_calc_type == "Percent"
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vroc_value = vroc(i_period, is_percent)
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// Plot
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plot(vroc_value, "VROC", color=color.yellow, linewidth=2)
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