This script distinguishes up/down volume based on lower resolution.
It's important to set correct inputs. Second - affects detalisation/loading speed. Third one needs to be set according to your chart resolution. 1440 for 'D', 30 for '30'.
This study is an optimized version of Bollinger Bands based on volume weighted data points: more volume on a bar gives those prices a higher impact. FHX bands base on the assumptions of auction market theory (e.g., as does volume profiling). Bollinger Bands implicitly assume a uniform probability mass function for data points and consider only the - somewhat...