根据值 pandas 选择行

Question

我正在尝试 select 仅包含值 Morning 的行

ID 16615 Morning, Morning, Night, Evening
ID 16617 Night, Night, Night, Night
ID 16618 Evening, Morning
ID 16619 Evening, Night, Morning, Morning
ID 16620 Evening, Evening, Evening, Afternoon
ID 166621 Afternoon, Afternoon, Afternoon, Morning

Output

ID 16615 Morning, Morning, Night, Evening
ID 16618 Evening, Morning
ID 16619 Evening, Night, Morning, Morning
ID 166621 Afternoon, Afternoon, Afternoon, Morning

仅表示包含“Morning”的 select 行

Answer 1

尝试这个：

df[df.str.contains('Morning', regex=False)] 

从您的 DataFrame (df) select 的含义来看，只有 df 的行包含单词'Morning'而不在正则表达式查询中实现它。

Answer 2

如果您需要检查所有列，那么您可以尝试：

df = df.loc[df.astype(str).apply(' '.join,1).str.contains('Morning')]