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https://github.com/mihakralj/QuanTAlib.git
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Miha Kralj
35a6702b06
Deep review of all indicator categories verified .md headers against .cs WarmupPeriod, parameters, inputs, and outputs. Fixes include warmup corrections, parameter documentation, output type accuracy, and Pine Script alignment.
29 lines
804 B
Plaintext
29 lines
804 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("Second Derivative / Acceleration (ACCEL)", "ACCEL", overlay=false, precision=8)
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//@function Calculates the second finite difference (acceleration): Accel = V[t] - 2*V[t-1] + V[t-2]
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//@param src Source series
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//@returns Second difference. Returns 0.0 until 3 bars are available.
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//@optimized Uses direct history access and FMA-equivalent for zero-allocation streaming.
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accel(series float src) =>
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float v0 = src
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float v1 = src[1]
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float v2 = src[2]
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if na(v1) or na(v2)
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0.0
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else
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v0 - 2.0 * v1 + v2
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// ---------- Main loop ----------
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// Inputs
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i_source = input.source(close, "Source")
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// Calculation
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a = accel(i_source)
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// Plot
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plot(a, "Accel", color=color.yellow, linewidth=2)
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