小编Yvi*_*ihs的帖子

我有一个如下所示的数据集。它是关系型的，但有一个名为 的维度，它是与相应行中event_params相关的数据的 JSON 对象。event_name

import pandas as pd

a_df = pd.DataFrame(data={
    'date_time': ['2021-01-03 15:12:42', '2021-01-03 15:12:46', '2021-01-03 15:13:01'
                  , '2021-01-03 15:13:12', '2021-01-03 15:13:13', '2021-01-03 15:13:15'
                  , '2021-01-04 03:29:01', '2021-01-04 18:15:14', '2021-01-04 18:16:01'],
    'user_id': ['dhj13h', 'dhj13h', 'dhj13h', 'dhj13h', 'dhj13h', 'dhj13h', '38nr10', '38nr10', '38nr10'],
    'account_id': ['181d9k', '181d9k', '181d9k', '181d9k', '181d9k', '181d9k', '56sf15', '56sf15', '56sf15'],
    'event_name': ['button_click', 'screen_view', 'close_view', 'button_click', 'exit_app', 'uninstall_app'
                   , 'install_app', 'exit_app', 'uninstall_app'],
    'event_params': ['{\'button_id\': \'shop_screen\', \'button_container\': \'main_screen\', \'button_label_text\': \'Enter Shop\'}',
                     '{\'screen_id\': \'shop_main_page\', \'screen_controller\': \'main_view_controller\', \'screen_title\': \'Main …