WillVal() = Stochastic Custom (WillSpread (Expression , Short Term Avg , Long Term Avg , Show Initial Bars) , Lookback Bars)
WillSpread() = MovingAvgX (100 * Close / Expression , Short Term Avg , Show Initial Bars) - MovingAvgX (100 * Close / Expression , Long Term Avg , Show Initial Bars)
Its compares one future with another one for example dollar index with gold:
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