February 2016
Intermediate to advanced
232 pages
4h 39m
Japanese
Content preview from Rパッケージ開発入門 ―テスト、文書化、コード共有の手法を学ぶ
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125
最後に、無限ループに陥った場合のデバッガの使い方を伝えます。そのようなときは、
Ctrl-C
を
押してデバッガに入ります。そうすると、どの行で問題が発生しているかを確認することができる
でしょう。
10.4
Makefile
Makefile
はこの本の対象範囲からは外れますが、便利なツールです。再現可能な研究に焦点を
当てた素晴らしく、また、わかりやすい紹介記事に
Karl Broman
の「
minimal make
」（
http://
kbroman.org/minimal_make/
）
†
があります。
一般的には
R
のパッケージでは、
Makefile
をカスタマイズするのは避けるべきです。代わり
に
Makevars
を使います。
Makevars
は、
R
が自動生成したデフォルトの
Makefile
（
file.path(R.
home("etc"), "Makeconf")
に配置されています）をオーバーライドしたものです。これによって
R
のデフォルトの動作の良いところも活用することができます。デフォルトの
Makefile
は
150
行
以上もあり、長年の多くのシステム上での闘いの匂いがするものです。あなたもきっと活用したい
はずです。一方で、
Makevars
を使えば必要なフラグを設定することも可能です。以下は、最も一
般的に使われるフラグです。
PKG_LIBS
リンカーのフラグ。
PKG_LIBS = $(BLAS_LIBS)
とするのが一般的です。この設定により、
BLAS
ライブラリを
R
から使うことができます。 ...
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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.