I was wondering why the built-in ATR that comes with eSignal gives a different result than if the ATR were calculated by the traditional method; Which is defined as follows:

True Range is the greatest of the following three values:

· difference between the current maximum and minimum (high and low);

· difference between the previous closing price and the current maximum;

· difference between the previous closing price and the current minimum.

When I import raw data from eSignal into Excel and calculate the ATR based on the above criteria, I get a different result than the ATR eSignal provides.

Is their different ways of calculating ATR or is their a problem with eSignal's ATR calculation?

I am using eSignal 8.0, Build 779.

True Range is the greatest of the following three values:

· difference between the current maximum and minimum (high and low);

· difference between the previous closing price and the current maximum;

· difference between the previous closing price and the current minimum.

When I import raw data from eSignal into Excel and calculate the ATR based on the above criteria, I get a different result than the ATR eSignal provides.

Is their different ways of calculating ATR or is their a problem with eSignal's ATR calculation?

I am using eSignal 8.0, Build 779.

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