This indicator is an extended implementation of Weis waves. It builds Weis waves on absolute volumes (which is the classical approach) or delta of volumes (unique feature) using different methods of wave formation and visualization. It works with real volumes, if available, or with tick volumes otherwise, but also provides an option to use so called “true volume surrogates”, as an artificial substitution for missing real volumes (for example, for Forex symbols), which was introduced in corresponding indicator.
Using delta of volumes is considered more accurate, than total volumes per bar. The underlying algorithm of calculation of the deltas is the same that’s used