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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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.
201
201
13.6 生存曲線を推定する
図
13-2
初婚年齢のハザード関数（上）と未婚状態の生存関数（下）
13.6
生存曲線を推定する
ハザード関数が得られれば、生存曲線を推定できます。時間
t
を過ぎて生存する機
会は、
t
に至るまでずっと生存している機会ですから、ハザード関数の補関数の積と
なります。
[1
−λ
(0)][1
−λ
(1)]...[1
−λ
(t)]
HazardFunction
クラスは、この積を計算する
MakeSurvival
を提供します。
# class HazardFunction:
def MakeSurvival(self):
ts = self.series.index
ss = (1 - self.series).cumprod()
cdf = thinkstats2.Cdf(ts, 1-ss)
sf = SurvivalFunction(cdf)
return sf
年齢（歳）
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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.