"filename_month_parts_index": CSVファイル名をアンダースコア_で区切った際の、年と月の部分のインデックスをリストで指定します。 例えば、report_2025_07.csvというファイル名なら [1, 2]となります。

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1. 概念与原理Pandas 是一个强大的 Python 数据处理和分析库，它提供了大量易于使用的数据结构和数据分析工具。Pandas 的主要目标是为 Python 提供高性能的数据操作功能，使得数据分析工作更加高效和便捷。解决的核心问题•数据清洗和预处理：Pandas ...