May 2018
Intermediate to advanced
228 pages
4h 11m
Japanese
Content preview from Rによるテキストマイニング ―tidytextを活用したデータ分析と可視化の基礎
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5.4
まとめ
■
103
5.4
まとめ
テキスト分析ではさまざまなツールが必要です。しかし、それらのツールの多く
は入出力として整理形式ではないデータを使っています。この章では、整理テキス
トデータフレームと疎行列形式の
DTM
の相互変換の方法と、文書のメタデータを
含むコーパスオブジェクトの整理の方法を説明しました。次章では、入力として
DTM
を必要とする
topicmodels
パッケージを使うので、これらの変換ツールがテキ
スト分析の重要な構成要素であることを改めて示します。
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.