May 2020
Intermediate to advanced
456 pages
9h 13m
Japanese
Content preview from ゼロからはじめるデータサイエンス 第2版 ―Pythonで学ぶ基本と実践
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.
408
■
27
章 前進しよう、データサイエンティストとして
27.2
数学
本書を通して、線形代数（
4
章 ）、 統 計 （
5
章 ）、 確 率 （
6
章 ）、 そ し て さ ま ざ ま な 機 械 学
習の話題を取り上げました。
良いデータサイエンティストであるには、これらについての深い理解が欠かせませ
ん。各章の最後に示した教科書や、自分で見つけた書籍、オンライン講座、実際の授
業などを通して、学習を進めてください。
27.3
既存のライブラリを活用する
「ゼロからはじめる」方式は、それがどのように働くかを理解するための優れた方法
ではありますが、（特にパフォーマンスに配慮した実装をしない限り）たいていは高い
パフォーマンスが望めませんし、使いやすさ、エラー処理、素早いプロトタイプ実装
などの面でも劣っています。
良く設計され、理論を完全に実装したライブラリを使うのが現実的です。当初の構
想では、本書の後半は「ライブラリから学ぼう」という構成になっていましたが、オラ
イリーとの話し合いの結果、そうしないことにしました。本書の初版が発行され後に
なりますが、
Jake VanderPlas
に よる『
Python Data Science Handbook
』（
http://shop.
oreilly.com/product/0636920034919.do
、
O
’
Reilly
）が出版されました（邦訳『データサ
イエンスハンドブック』オライリー・ジャパン、
2018
）。関連するライブラリに対する
優れた入門書であり、
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.