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Portfolio123 » List all forums » Forum: Feature Suggestions » Thread: More TA Functions |
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fier
Advanced Member
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Marco, I would also like to see more choices under tecnical indicators. You make a good point on longer term indicators being most appropriate. A Volatility indicator would be a great add, I suggest Average True Range % as follows ; ATR( days ), so that ATR(90) would represent the average true range over the last 90 days. This is a much better volatility measure than Beta. An application would be to add ATR(90) < 5 as a buy rule for example. This would filter out very volatile stocks with a greater than 5% ATR average the last 90 days. ATR(90) > 4 would only buy high Volatility stocks. ATR(90>3.5 & ATR(90)<8 would filter out "sleepers" and "heartattcak specials". code for ATR is; (using your format) MaxtrA is Max(abs(close(1)-low(0)),abs(close(1)-high(0))). TR is Max(high-low,MaxtrA). TRpb is TR/close(1). TRpct is TRpb*100. ATR90 is sma(TRpct,90). For classic TA indicators I would add; a Slow Stocastics, Stoch(longEMA,shortEMA), RSI Wilder with smoothing, RSI(days,EMAsmoothing ), BollingerBands Upper and Lower , BBupper(days,sdev), BBlower(days,sdev). These would cover most needs. The smoothed RSI is very effective for longer term investing, for example RSI(14,28) would be a classic 14 day RSI with a 28dayEMA smoothing. Hope this helps and thanks for a great product! |
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More TA Functions
