# when using pandas to plot, the different boxplots should be different columns
# therefore, pivot table so that the weekdays are the different columns
data_daily['week'] = data_daily.index.isocalendar().week
data_pivoted = data_daily.pivot_table(columns='dayofweek', index='week',
                                      values='BETR801')
data_pivoted.head()
data_pivoted.boxplot();