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Indicator · Pine Script v6 · Own pane
Ehlers Directional Movement with Hann (DMH)
This indicator calculates Ehlers directional movement with a Hann window and plots it in a separate pane.
GitHub stars99on the repository
Pine versionv6current
Lines of code46
Settings1inputs
LicenceApache-2.0
Last update4 weeks ago27 Sep 2026
Add It to Your TradingView Chart
- 1Copy the scriptPress Copy script above, or the copy button on the code below.
- 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
- 3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
- 4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.
Source Code
46 lines of Pine Script v6 from lib/dynamics/dmh/dmh.pine, published under Apache-2.0. Keep the author's credit and licence lines when you reuse it.
// Licensed under the Apache License, Version 2.0
// © mihakralj
//@version=6
indicator("Ehlers Directional Movement with Hann (DMH)", "DMH", overlay=false)
//@function Calculates DMH (Ehlers Directional Movement with Hann Windowing)
//@param period Number of bars used in the calculation
//@returns dmh value
dmh(simple int period = 14) =>
if period <= 0
runtime.error("Period must be greater than 0")
float sf = 1.0 / period
// Stage 1: Classic DM extraction
float upperMove = na(high[1]) ? 0.0 : high - high[1]
float lowerMove = na(low[1]) ? 0.0 : low[1] - low
float plusDM = 0.0
float minusDM = 0.0
if upperMove > lowerMove and upperMove > 0
plusDM := upperMove
else if lowerMove > upperMove and lowerMove > 0
minusDM := lowerMove
// Stage 2: EMA smoothing
var float ema = 0.0
ema := sf * (plusDM - minusDM) + (1.0 - sf) * ema
// Stage 3: Hann FIR filter on EMA history
float dmSum = 0.0
float coef = 0.0
for count = 1 to period
float w = 1.0 - math.cos(2.0 * math.pi * count / (period + 1))
dmSum += w * nz(ema[count - 1])
coef += w
float result = coef != 0 ? dmSum / coef : 0.0
result
// Inputs
i_period = input.int(14, "Period", minval=1, tooltip="Number of bars used in the calculation")
// Calculate DMH
dmhVal = dmh(i_period)
// Plot
hline(0, "Zero", color=color.gray, linestyle=hline.style_dotted)
plot(dmhVal, "DMH", color=color.yellow, linewidth=2)
Overview
Ehlers Directional Movement with Hann (DMH) extracts classic plus and minus directional movement from bar highs and lows, smooths their difference with an exponential moving average, then applies a Hann finite impulse response filter over that average. The period input sets both the EMA smoothing factor and the Hann window length. A yellow DMH line and a dotted zero line are drawn. There are no trade signals, entries, or exits.
- Classic plus and minus directional movement
- EMA smoothing of the DM difference
- Hann FIR filter over the EMA
- Period input with a default of 14
- DMH line and dotted zero level
Details
Published by
mihakralj on GitHub
Type
Indicator, Pine Script v6
Draws
Separate pane below the chart
Category
Oscillators & momentum, Trend
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.
Topics
algorithmic-tradingcsharpdotnetpinescriptpythonquantitative-financesimdta-libtechnical-analysistechnical-indicators
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| Period | int | 14 | i_period |
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.
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