Originally Posted by newdigital

Well.
WSOWROTrend indicator is based on Widners Oscilator. As I understand it is some preliminary indicator. Sope people built the trading system on this indicator but they improved it.
nPeriod is number of the bars for the calculation of the minimums and maximums. The value of nPeriod may be from 3 or above. 9 is by defauld value. All the support and resistance lines are based on the maximums and minimums.