October 2017
Intermediate to advanced
480 pages
9h 49m
Japanese
Content preview from Rではじめるデータサイエンス
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380
21
章
R
マークダウン
クダウン文書（
.md
）が作られます。この
knitr
が作ったマークダウンファイルをpandoc（http://
pandoc.org/）が処理して、最終ファイルが出来上がります。この2 段階ワークフローの利点は、23 章
で学ぶように非常に広範囲の出力フォーマットに対応できることです。
自分で
.Rmd
ファイルを作るには、メニューバーで File→NewFile→RMarkdown…と選びます。
RStudioは、ウィザードを使って、Rマークダウンの基本機能がどうなっているかを示す内容を含ん
だ新規ファイルを用意します。
次節以降では、R マークダウンの3つの部分、マークダウンテキスト、コードチャンク、YAMLヘッ
ダの詳細を学びます。
1. File→ New File→ R Notebookとして新しいノートブックを作りなさい。表示された指示を読
みなさい。チャンクの実行を練習しなさい。コードを修正し、再実行して、修正結果を検証し
なさい。
2. File→ New File→ R Markdown…として新しいRマークダウン文書を作りなさい。適切なボ
タンを押して
knit
しなさい。正しいキーボードショートカットで
knit
しなさい。入力を変更し
て、出力がきちんと更新されていることを検証しなさい。
3. 上で作った、RノートブックファイルとR マークダウンファイルとを比較対照しなさい。出力は
どのように同じで、どのように違っているか。入力はどのように同じでどの ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.