This indicator was originally developed by Paul L. Dysart in the 1930s and then described and popularized by Norman G. Fosback in his book "Stock Market Logic: A Sophisticated Approach to Profits on Wall Street"
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In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.
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