Pandas - assign() to Add Computed Columns
• The assign() method enables functional-style column creation by returning a new DataFrame rather than modifying in place, making it ideal for method chaining and immutable data pipelines.
• The assign() method enables functional-style column creation by returning a new DataFrame rather than modifying in place, making it ideal for method chaining and immutable data pipelines.
The assign() method is one of pandas’ most underappreciated features. It creates new columns on a DataFrame and returns a copy with those columns added. This might sound trivial—after all, you can…