Formulas:
XRSX=(DMA/AbsDMA)*50+50, where
DMA-moving average for DPrice,
AbsDMA-moving average for AbsDPrice,
DPrice[i]=Price[i]-Price[i-1],
AbsDPrice[i]=Abs(Price[i]-Price[i-1]).
XRSX_BB - indicator with signal line and bands.
XRSX:
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XRSX_BB:
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