Solution to Plotting Issue Regarding Indicator with Single Price Line Input

[paul_lam]

Re: LinesCoupler is plotted on different figure when passing line instead of data to SMA indicator

Although I did try to implement a custom plotter using plotly in order to solve the problem as I believed that it was caused by the default plotter matplotlib, I finally realized that the problem is caused by providing a price line as an input to the indicator.

The final __init__ method shall look like the following.

def __init__(self):
    self.sma = sma = btind.SMA(self.data1.open)  # use open price liz
    sma.plotinfo.plot = True  # show plotting

    if self.p.multi:
        self.sma1 = sma()  # couple the entire indicators
        '''
        By providing only a price line to the indicator,
        the clock of the `LinesCoupler` object `self.sma1` won't be updated,
        it shall be set manually.
        '''
        self.sma1._clock = self.data0

        self.sellsignal = self.data0.close < self.sma1.sma
    else:
        self.sellsignal = self.data0.close < sma.sma()