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April 7, 2018 08:45
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| np.random.seed(123) | |
| num_vals = 27 | |
| index = pd.DatetimeIndex(start='jan 2 2018', periods=num_vals, freq='1D', name='date') | |
| data = np.random.randn(num_vals) | |
| dff = pd.DataFrame(data, index=index, columns=['val']) | |
| dff.loc[:, 'weekday'] = dff.index.weekday | |
| dff.loc[:, 'weekstart'] = dff.index - dff.index.weekday.astype('timedelta64[D]') | |
| piv = dff.pivot(columns='weekday', values='val', index='weekstart') | |
| piv.rename(inplace=True, columns={0: 'Mon', 1: 'Tue', 2: 'Wed', 3: 'Thu', 4: 'Fri', 5: 'Sat', 6: 'Sun'}) | |
| piv.dropna(inplace=True) | |
| plt.boxplot(piv.T); | |
| piv.T |
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