What method can be used to concatenate two DataFrames vertically?
Instruction: Explain how to combine two DataFrames vertically (adding rows) in Pandas.
Context: This question evaluates the candidate's understanding of concatenating DataFrames to merge datasets in a vertical manner, which is essential for data integration.
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First, ensure that both DataFrames share the same column structure or schema to prevent any inconsistencies or errors. It’s paramount for accurate data integration. Next, use the pd.concat() function, specifying the DataFrames to concatenate as a list. For example, pd.concat([df1, df2])...