grouping by day of the week pandas

Question

  I have a dataframe,df 

        Index       eventName Count   pct
     2017-08-09       ABC     24     95.00%
     2017-08-09       CDE    140     98.50%
     2017-08-         


        

Answer 1

By using value_counts

df.Index=pd.to_datetime(df.Index)
df.Index.dt.weekday_name.value_counts()
Out[994]: 
Wednesday    3
Thursday     2
Friday       2
Name: Index, dtype: int64