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df = pd.DataFrame({
'sales': [3, 2, 3, 9, 10, 6],
'signups': [5, 5, 6, 12, 14, 13],
'visits': [20, 42, 28, 62, 81, 50],
index=pd.date_range(start='2018/01/01', end='2018/07/01', },
freq='M'))
>>> ax = df.plot.area()