Updates:
Added optional smoothing to the script using an exponential moving average to filter noisy outputs.
Added a mode selection with three modes to choose from:
- Dual Index Mode, which displays the original DVDI
- Oscillator Mode, which displays the difference between the PVDI and NVDI as a centered oscillator
- Bar Counter Mode, which displays the number of bars in which volume divergence is in a positive dominant phase and negative dominant phase