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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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