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df.replace()

AI & DATA SCIENCE // df-replace

Replace values given in to_replace with value.

Syntax

res = df.replace('old_val', 'new_val')

Examples

Example 01Basic Usage
res = df.replace('old_val', 'new_val')

Best Practices

  • Use vectorized operations over iterations (e.g. iterrows()) for performance.
  • Always verify memory usage when loading large files.