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Charting and Studies User Guide - CQG.com

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Page 214<br />

Basic <strong>Studies</strong><br />

ER*(Fast – Slow) + Slow or the default version is ER*(0.6667-0.0645) - 0.0645<br />

As stated earlier, if the market is trending, then ER will approach 1 <strong>and</strong> the scalable constant<br />

will be weighted towards the Fast constant in the formula above. If the market is in congestion,<br />

then ER will approach 0 <strong>and</strong> the scalable constant will be weighted towards the Slow constant.<br />

Finally, the result from the formula above is squared.<br />

SC = (ER*(Fast – Slow) + Slow) 2<br />

This causes the AMA to go flat when the market is in congestion because the ER approaches<br />

zero <strong>and</strong> the resulting smoothing constant is a very small number.<br />

Adaptive Moving Average Parameters<br />

• Display<br />

• MarkIt<br />

• Offset: Shifts the study curve to the left or to the right by a specified number of bars.<br />

• ER Period: Defines the number of days used to calculate the Efficiency Ratio<br />

(direction/volatility ratio).<br />

• Fast Period: Defines the Smoothing Constant by converting the specified period (N)<br />

using the formula 2/N+1.<br />

• Slow Period: Defines the Smoothing Constant by converting the specified period (N)<br />

using the formula 2/N+1.<br />

• Price: Determines the price used in the calculation.

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