# indie:lang_version = 5
from indie import indicator, format, plot, color, MutSeriesF
from indie.algorithms import CumSum, NanToZero, Change
from indie.math import divide


@indicator('PVT', format=format.VOLUME)  # Price Volume Trend
@plot.line(color=color.BLUE)
def Main(self):
    return CumSum.new(NanToZero.new(MutSeriesF.new(
        divide(Change.new(self.close)[0], self.close[1]) * self.volume[0])))[0]