October 2018
Beginner to intermediate
238 pages
6h 32m
Chinese
Content preview from 面向数据科学家的实用统计学
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.
172
｜
第
6
章
图 6-3：拟合贷款数据的一个简单树模型中的规则
使用
R
语言，很容易生成一个绘图效果更好的树模型。
loan_tree
n=3000
node), split, n, loss, yval, (yprob)
* denotes terminal node
1) root 3000 1467 paid off (0.5110000 0.4890000)
2) borrower_score>=0.525 1283 474 paid off (0.6305534 0.3694466)
4) payment_inc_ratio< 8.772305 845 249 paid off (0.7053254 0.2946746) *
5) payment_inc_ratio>=8.772305 438 213 default (0.4863014 0.5136986)
10) borrower_score>=0.625 149 60 paid off (0.5973154 0.4026846) *
11) borrower_score< 0.625 289 124 default (0.4290657 0.5709343) *
3) borrower_score< 0.525 1717 724 default (0.4216657 0.5783343)
6) payment_inc_ratio< 9.73236 1082 517 default (0.4778189 ...
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.