Absolute Breadth Index.afl
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上传日期:2009-06-12
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- //------------------------------------------------------------------------------
- //
- // Formula Name: Absolute Breadth Index
- // Author/Uploader: Tomasz Janeczko
- // E-mail: tj@amibroker.com
- // Date/Time Added: 2001-06-16 07:36:16
- // Origin: Originaly developed by Norman G. Fosback.
- // Keywords: breadth
- // Level: basic
- // Flags: indicator
- // Formula URL: http://www.amibroker.com/library/formula.php?id=1
- // Details URL: http://www.amibroker.com/library/detail.php?id=1
- //
- //------------------------------------------------------------------------------
- //
- // The Absolute Breadth Index (ABI) is a market momentum indicator that was
- // developed by Norman G. Fosback. The ABI shows how much activity,
- // volatility, and change is taking place on the New York Stock Exchange while
- // ignoring the direction prices are headed. You can think of the ABI as an
- // "activity index". High readings indicate market activity and change, while
- // low readings indicate lack of change. In Mr. Fosback's book, Stock Market
- // Logic, he indicates that historically, high values typically lead to higher
- // prices three to twelve months later.
- //
- //------------------------------------------------------------------------------
- /*
- Absolute Breadth Index
- AFL implementation by Tomasz Janeczko.
- */
- graph0 = abs( AdvIssues() - DecIssues() );