Estou usando o Jupyter Notebook, e ao inserir o código: notas.nota.plot() apareceu este erro abaixo:
ImportError Traceback (most recent call last) in ----> 1 notas.nota.plot()
c:\users\tef_r\appdata\local\programs\python\python37\lib\site-packages\pandas\plotting_core.py in call(self, args, *kwargs) 765 766 def call(self, args, *kwargs): --> 767 plot_backend = getplot_backend(kwargs.pop("backend", None)) 768 769 x, y, kind, kwargs = self.getcall_args(
c:\users\tef_r\appdata\local\programs\python\python37\lib\site-packages\pandas\plotting_core.py in getplot_backend(backend) 1667 "matplotlib is required for plotting when the " 1668 'default backend "matplotlib" is selected.' -> 1669 ) from None 1670 1671 _backends["matplotlib"] = module
ImportError: matplotlib is required for plotting when the default backend "matplotlib" is selected.
