drop elements of a level of a multi-level index pandas

Question

In the following DataFrame there are a 2-level MultiIndex, namely city and date:

                 temp
                count
city date            
SFO  2014-05-31    31
     2014-06-30    30
     2014-07-31    31
     2014-08-31    31
     2014-09-30    30
YYZ  2014-05-31    31
     2014-06-30    30
     2014-07-31    31
     2014-08-31    31
     2014-09-30    30

I want to drop 2014-05-31 and 2014-09-30 from the date level.

How do I do this?

Comment: To build the DataFrame -

df = pd.DataFrame(
    {('temp', 'count'): {('SFO', Timestamp('2014-05-31 00:00:00')): 31,
                         ('SFO', Timestamp('2014-06-30 00:00:00')): 30,
                         ('SFO', Timestamp('2014-07-31 00:00:00')): 31,
                         ('SFO', Timestamp('2014-08-31 00:00:00')): 31,
                         ('SFO', Timestamp('2014-09-30 00:00:00')): 30,
                         ('YYZ', Timestamp('2014-05-31 00:00:00')): 31,
                         ('YYZ', Timestamp('2014-06-30 00:00:00')): 30,
                         ('YYZ', Timestamp('2014-07-31 00:00:00')): 31,
                         ('YYZ', Timestamp('2014-08-31 00:00:00')): 31,
                         ('YYZ', Timestamp('2014-09-30 00:00:00')): 30}}
).rename_axis(['city','date'])

danielhadar · Accepted Answer · 2016-07-27 14:35:51Z

6

You can give drop a specific level:

In[4]: df.drop([Timestamp('2014-05-31'),Timestamp('2014-09-30')],level=1)
Out[4]: 
                 temp
                count
city date            
SFO  2014-06-30    30
     2014-07-31    31
     2014-08-31    31
YYZ  2014-06-30    30
     2014-07-31    31
     2014-08-31    31

answered Jul 27, 2016 at 14:35

danielhadar

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