Best way to generate day-of-week boxplots from a Pandas timeseries

Question

i am trying to create a set of day-of-week boxplots for a timeseries (e.g. 5-minute temperature observations).

My code:

# ts is our timeseries
ts = df.S         


        

Answer 1

1st Create data frame and use weekdays method to get days of week:

import pandas as pd
import numpy.random as random
n=1000
df = pd.DataFrame(random.randn(n), pd.date_range('2010-01-01', periods=n), columns=["data"])
df['Dates'] = df.index
df['week_days'] =df.index.weekday
df

now pivot that table so that the week_days are as columns (could also change the needdays to string formats of days but leaving that for you.

x =df.pivot(index='Dates', columns='week_days', values='data')
x.boxplot()