On Balance Volume Disparity Indicator

The On Balance Volume Disparity Indicator was created by Phillip C. Holt (Stocks & Commodities V. 14:6 (265-269)). This converts the classic OBV indicator into Bollinger Bands and calculates the percentage of where the value lies within the Bollinger Bands. Buy when the obvdi rises above its signal line and sell when it falls below the signal line.

This was a special request so let me know what other indicators you would like me to write scripts for!

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I changed the charts

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changed the signal length

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changed to make it more understandable

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Allowed someone to change the top and bottom guide and changed the signals to buy or sell when obvdi goes above the top or falls below the bottom

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changed the signal to sma and default length to 4

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Finalized the buy and sell signals

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fixed small typo

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changed to match my other indicators

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fixed issue with default resolution