想收集同串header
Want To Collect The Same string of header
我有 header 个 sheet 个
'''
+--------------+------------------+----------------+--------------+---------------+
| usa_alaska | usa_california | france_paris | italy_roma | france_lyon |
|--------------+------------------+----------------+--------------+---------------|
+--------------+------------------+----------------+--------------+---------------+
'''
df = pd.DataFrame([], columns = 'usa_alaska usa_california france_paris italy_roma france_lyon'.split())
我想以某种方式按国家和地区分隔 header,这样当我调用 france
时,我应该得到 paris
和 lyon
作为列.
根据您的列名创建一个 MultiIndex:
假设这个数据框:
>>> df
usa_alaska usa_california france_paris italy_roma france_lyon
0 1 2 3 4 5
df.columns = df.columns.str.split('_', expand=True)
df = df.sort_index(axis=1)
输出
>>> df
france italy usa
lyon paris roma alaska california
0 5 3 4 1 2
>>> df['france']
paris lyon
0 3 5
我有 header 个 sheet 个
'''
+--------------+------------------+----------------+--------------+---------------+
| usa_alaska | usa_california | france_paris | italy_roma | france_lyon |
|--------------+------------------+----------------+--------------+---------------|
+--------------+------------------+----------------+--------------+---------------+
'''
df = pd.DataFrame([], columns = 'usa_alaska usa_california france_paris italy_roma france_lyon'.split())
我想以某种方式按国家和地区分隔 header,这样当我调用 france
时,我应该得到 paris
和 lyon
作为列.
根据您的列名创建一个 MultiIndex:
假设这个数据框:
>>> df
usa_alaska usa_california france_paris italy_roma france_lyon
0 1 2 3 4 5
df.columns = df.columns.str.split('_', expand=True)
df = df.sort_index(axis=1)
输出
>>> df
france italy usa
lyon paris roma alaska california
0 5 3 4 1 2
>>> df['france']
paris lyon
0 3 5