Remove non-business days rows from pandas dataframe

I have a dataframe with a timeseries data of wheat in df.

df = wt["WHEAT_USD"]

2016-05-02 02:00:00+02:00    4.780
2016-05-02 02:01:00+02:00    4.777
2016-05-02 02:02:00+02:00    4.780
2016-05-02 02:03:00+02:00    4.780
2016-05-02 02:04:00+02:00    4.780
Name: closeAsk, dtype: float64

When I plot the data it has these annoying horizontal lines because of weekends. Is there a simple way of removing the non-business days from the dataframe itself?

Something like

df = df.BDays()

Solution 1:

One simple solution is to slice out the days not in Monday to Friday:

In [11]: s[s.index.dayofweek < 5]
Out[11]:
2016-05-02 00:00:00    4.780
2016-05-02 00:01:00    4.777
2016-05-02 00:02:00    4.780
2016-05-02 00:03:00    4.780
2016-05-02 00:04:00    4.780
Name: closeAsk, dtype: float64

Note: this doesn't take into account bank holidays etc.

Solution 2:

Pandas BDay just ends up using .dayofweek<5 like the chosen answer, but can be extended to account for bank holidays, etc.

import pandas as pd
from pandas.tseries.offsets import BDay

isBusinessDay = BDay().onOffset
csv_path = 'C:\\Python27\\Lib\\site-packages\\bokeh\\sampledata\\daylight_warsaw_2013.csv'
dates_df = pd.read_csv(csv_path)
match_series = pd.to_datetime(dates_df['Date']).map(isBusinessDay)
dates_df[match_series]