Pandas - plot

import pandas as pd
import matplotlib.pyplot as plt

df = pd.DataFrame({
    'time': ['2018-01-01', '2018-01-02', '2018-01-03'],
    'place': ['A', 'B', 'C'],
    'magnitude': [-4, 3, 2],
})

print(df)

df['time'] = pd.to_datetime(df['time'])

df.plot(x='time', y='magnitude')
plt.show()

df.plot(x='magnitude', y='time')
plt.show()

# --------------------------------------

print('wrong data')

new = pd.DataFrame()
new.append( df['time'] )
print(new)