def __init__(self, series, periods, scale=1):
SeriesIndex.__init__(self, series)
self.periods = periods
self.scale = scale
self.xarray = array(range(0, periods))
def __init__(self, series, periods, scale=1):
SeriesIndex.__init__(self, series)
self.periods = periods
self.scale = scale
self.xarray = array(range(0, periods))
def __init__(self, series, period, dev_factor):
SeriesIndex.__init__(self, series)
self.period = period # allows for periods != periods of series
self.dev_factor = dev_factor
def __init__(self, series, period, dev_factor):
SeriesIndex.__init__(self, series)
self.period = period # allows for periods != periods of series
self.dev_factor = dev_factor
