Buy - force index crosses down centerline
Sell - force index crosses down centerline
Parameters available:
MA Period - the period used for the moving average calculation of the Force Index
Exponential - Select yes to use exponential moving average otherwise use simple moving average
t1 - the periods that moving average of Force Index is above Center Line
t2 - the maximum duration within which x is reached
x - the minimum distance between Center Line and moving average of Force Index after the crossover
Rule Type - please refer to 140 for details
Data Type - please refer to 141 for details