def plot(self, freq=None, figsize=(15, 5), title=None,
             logy=False, **kwargs):
        """
        Helper function for plotting the series.

        Args:
            * freq (str): Data frequency used for display purposes.
                Refer to pandas docs for valid freq strings.
            * figsize ((x,y)): figure size
            * title (str): Title if default not appropriate
            * logy (bool): log-scale for y axis
            * kwargs: passed to pandas' plot method

        """

        if title is None:
            title = self._get_default_plot_title(
                freq, 'Equity Progression')

        ser = self._get_series(freq).rebase()
        return ser.plot(figsize=figsize, logy=logy,
                        title=title, **kwargs)
Helper function for plotting the series.

        Args:
            * freq (str): Data frequency used for display purposes.
                Refer to pandas docs for valid freq strings.
            * figsize ((x,y)): figure size
            * title (str): Title if default not appropriate
            * logy (bool): log-scale for y axis
            * kwargs: passed to pandas' plot method