Skip to Content
R 语言经典实例(原书第 2 版)
book

R 语言经典实例(原书第 2 版)

by J.D. Long, Paul Teetor
June 2020
Beginner to intermediate
522 pages
9h 6m
Chinese
China Machine Press
Content preview from R 语言经典实例(原书第 2 版)
312
11
lm(y ~ u + v + w)
#>
#> Call:
#> lm(formula = y ~ u + v + w)
#>
#> Coefficients:
#> (Intercept) u v w
#> 4.77 4.17 3.01 1.91
当变量数量增加时,lm 的参数 data 特别有用,它更易于将数据保存在一个数据框中而
不使它们成为许多分散的变量。假设你的数据在数据框中,例如此处显示的变量 df
df <- data.frame(y, u, v, w)
head(df)
#> y u v w
#> 1 16.67 1.371 5.402 -5.00
#> 2 14.96 -0.565 5.090 -2.67
#> 3 5.89 0.363 0.994 -1.83
#> 4 27.95 0.633 6.697 -0.94
#> 5 2.42 0.404 1.666 -4.38
#> 6 5.73 -0.106 3.211 -4.15
当你向 lm 的参数 data 提供 df 时,R 会在数据框的列中查找回归变量:
lm(y ~ u + v + w, data = df)
#>
#> Call:
#> lm(formula = y ~ u + v + w, data = df)
#>
#> Coefficients:
#> (Intercept) u v w
#> 4.77 4.17 3.01 1.91
11.2.4 另请参阅
有关简单线性回归,请参见 11.1 节。
11.3 得到回归统计量
11.3.1 ...
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

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’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.
Head of Cybersecurity
QuotationMarkI 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.
Field Engineer
QuotationMarkI’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.
Data Platform Tech Lead
QuotationMarkI'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.
Mark W.
Embedded Software Engineer

You might also like

机器学习实战:基于Scikit-Learn、Keras 和TensorFlow (原书第2 版)

机器学习实战:基于Scikit-Learn、Keras 和TensorFlow (原书第2 版)

Aurélien Géron
大规模数据分析和建模:基于 Spark 与 R

大规模数据分析和建模:基于 Spark 与 R

Javier Luraschi, Kevin Kuo, Edgar Ruiz
管理Kubernetes

管理Kubernetes

Brendan Burns, Craig Tracey

Publisher Resources

ISBN: 9787111656814