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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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.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.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.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.
98
6
章 ワークフロー：プロジェクト
こうすると、RStudioを再開しても最後に実行したコードの結果を記憶していないので、短期的に
は不都合を感じるでしょう。しかし、こうすると自分のコードの重要な経過を自分で保存しないとい
けないので、長期的には問題解消につながり、この短期的な不都合は問題にはなりません。3か月後
に、見つかったのがコードそのものではなく、計算結果のみという事実ほど最悪なことはありません。
エディタでコードの重要な部分をキャプチャした後は、次のキーボードショートカットが便利で
す。
●
Cmd/Ctrl-Shift-F10を押してRStudioを再開する。
●
Cmd/Ctrl-Shift-S を押して現在のスクリプトを再実行する。
私はこのパターンを週に何百回も行っています。
6.2
どこで分析するか
Rには作業ディレクトリという強力な概念があります。R は、このディレクトリからロードするファ
イルを探し、ここにファイルを保存します
。RStudioはコンソールの上部に作業ディレクトリを示し
ています。
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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.