August 2015
Intermediate to advanced
272 pages
5h 46m
Japanese
Content preview from Think Stats 第2版 ―プログラマのための統計入門
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212
13 章 生存分析
センタイル）を計算します。
13.11
演習問題
†
演習問題
13-1
NSFG
のサイクル
6
と
7
では、該当する回答者のみ、最初の離婚日を変数
cmdivor
cx
に、世紀月で保持している。
離婚までの結婚期間と、今なお続いている結婚期間とを計算しなさい。結婚期間に
ついてのハザード関数と生存関数を推定しなさい。
標本化重みを考慮したリサンプリングを使い、いくつかのリサンプリングしたデー
タをプロットして、標本誤差を可視化しなさい。
回答者の生年の年代別グループに分けて、また、初婚の年齢について分けて、検討
しなさい。
13.12
用語集
生存分析（
survival analysis
）
生存期間、より一般的にはイベントの起こるまでの時間を記述し、予測する一連
の手法。
生存関数（
survival function
）
時間
t
と
t
を超えて生存する確率を対応させる関数。
生存曲線（
survival curve
）
生存関数と同義。
ハザード関数（
hazard function
）
t
と、
t
まで生きてきて死んだ人の割合とを対応させる関数。
カプラン・マイヤー推定（
Kaplan-Meier estimation
）
ハザード関数と生存関数とを推定するアルゴリズム
コホート（
cohort
）
特定期間に生じた、生年月日のようなイベントで定義された被験者のグループ。
†
この問題の解答は
chap12soln.py
にある。
213
213
13.12 用語集
コホート効果（
cohort effect
）
コホート間の相違。
NBUE
「新品のほうが中古より長持ち」という期待残存生存期間の特性。 ...
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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.