ploterror.py

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-8-d6ad06492590> in <module>()
----> 1 bss_spectra[0].plot()

/Users/thomas/Dropbox/0_Git/GitHub Desktop/hyperspy/hyperspy/signal.py in plot(self, navigator, axes_manager, **kwargs)
   2029 
   2030         self._plot.plot(**kwargs)
-> 2031         self.events.data_changed.connect(self.update_plot, [])
   2032         if self._plot.signal_plot:
   2033             self._plot.signal_plot.events.closed.connect(

/Users/thomas/Dropbox/0_Git/GitHub Desktop/hyperspy/hyperspy/events.py in connect(self, function, kwargs)
    307         if function in self.connected:
    308             raise ValueError("Function %s already connected to %s." %
--> 309                              (function, self))
    310         if kwargs == 'auto':
    311             spec = inspect.signature(function)

ValueError: Function <bound method BaseSignal.update_plot of <EELSSpectrum, title: 45-day ZIRLO, 0eV Energy Loss with ICA, dimensions: (484, 349|1581)>> already connected to <hyperspy.events.Event: Event that triggers when the data has changed: {<bound method Interactive.update of <hyperspy.interactive.Interactive object at 0x1296cac50>>, <bound method BaseSignal.update_plot of <EELSSpectrum, title: 45-day ZIRLO, 0eV Energy Loss with ICA, dimensions: (484, 349|1581)>>, <bound method Interactive.update of <hyperspy.interactive.Interactive object at 0x12880cdd8>>}>.