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https://github.com/mihakralj/QuanTAlib.git
synced 2026-07-31 19:07:42 +00:00
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.
39 lines
1.1 KiB
Plaintext
39 lines
1.1 KiB
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("Average True Range (ATR)", "ATR", overlay=false)
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//@function Calculates the Average True Range (ATR)
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//@param length The period length for the ATR calculation.
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//@returns The ATR value.
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//@optimized Beta precomputation for RMA warmup compensation
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atr(simple int length) =>
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var float prevClose = close
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float tr1 = high - low
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float tr2 = math.abs(high - prevClose)
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float tr3 = math.abs(low - prevClose)
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float trueRange = math.max(tr1, tr2, tr3)
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prevClose := close
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float alpha = 1.0 / float(length)
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float beta = 1.0 - alpha
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var float EPSILON = 1e-10
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var float raw_rma = 0.0
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var float e = 1.0
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if not na(trueRange)
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raw_rma := (raw_rma * (length - 1) + trueRange) / length
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e *= beta
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e > EPSILON ? raw_rma / (1.0 - e) : raw_rma
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else
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na
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// ---------- Main loop ----------
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// Inputs
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i_length = input.int(14, "Length", minval=1, tooltip="Number of bars used for the ATR calculation")
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// Calculation
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atrValue = atr(i_length)
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// Plot
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plot(atrValue, "ATR", color=color.yellow, linewidth=2)
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