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df.loc[]
AI & DATA SCIENCE // df-loc
Access a group of rows and columns by label(s) or a boolean array.
Syntax
sub_df = df.loc[1:5, ['A', 'B']]Examples
Example 01Basic Usage
sub_df = df.loc[1:5, ['A', 'B']]Best Practices
- Use vectorized operations over iterations (e.g.
iterrows()) for performance. - Always verify memory usage when loading large files.