Buy - Smoothed RSI just enters oversold region
Sell - Smoothed RSI just enters overbought region
Parameters available:
Period - period of Smoothed RSI
Lower Limit - lower limit of Smoothed RSI
Upper Limit - upper limit of Smoothed RSI
t - the minimum number of periods Smoothed RSI to be above(buy)/below(sell) limit before crossing over
Rule type - please refer to 140 for details
Data type - please refer to 141 for details