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         bollinger-rsi 20-2
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         elder modified screen
         elder screen
         envelope 8-8.0
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         negative volume index 255
         percentage price oscillator 8-17
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         sar 0.02-0.2
         stochastics 10-3-3
         trix 14-9
         williams %r 14
      Technical Indicators
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The elder modified screen is based upon the elder screen. It also combines two screens: one is the long term screen and another is the intermediate term screen. Stockworm uses an exponential moving average (ema) to determine the trend of the long term chart and then applies the elder-ray power screen to determine buy/sell points.

Three indicator lines are used:

Go long when the long term price trend is up and the ema of the elder-ray bear is less than 0. Go short when the long term price trend is down and the ema of the elder-ray bull is greater than 0.