The “Positive Volume Index” indicator
It has no input parameters. It is calculated by the following formula:
if Volume[i]<=Volume[i+1] Positive Volume Index[i]=Positive Volume Index[i+1] and
if Volume[i]>Volume[i+1] Positive Volume Index[i]=Positive Volume Index[i+1]*(1+(Close[i]-Close[i+1])/Close[i+1])