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Directional Movement (DM)

StratCraft indicator page for DM.

Route: /indicators/dm/

What It Does

DM isolates directional movement from bar to bar. It is a core building block for DI and ADX calculations.

Formula

DM compares current highs and lows to the prior bar to measure directional change.

Parameters

  • period - default 14
  • movav - default SmoothedMovingAverage

C++23 API

#include <nonabt/indicators/dm.hpp>
auto dm = std::make_unique<nonabt::DM>(data(), 14, "SmoothedMovingAverage");

Common Usage

  • Use DM as a directional input feature.
  • Combine with smoothed range measures.
  • Helps build trend strength indicators.

Practical Pattern

Positive directional movement usually reflects higher highs; negative directional movement reflects lower lows.

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