本站提供 8500 多本免费的 IT 技术电子书在线下载。
  1. 文章总数:8391
  2. 浏览总数:248,798
  3. 评论:0
  4. 分类目录:125 个
  5. 注册用户数:29
  6. 最后更新:2019年11月22日
过往记忆博客公共帐号iteblog_hadoop
欢迎关注微信公共帐号:
iteblog_hadoop

Data Manipulation with R, Second Edition

数据库 iteblog 29℃ 0评论

关注 过往记忆大数据 微信公众号,回复 4024 获取本书下载地址。

子标题:Efficiently perform data manipulation using the split-apply-combine strategy in R

Data Manipulation with R, Second Edition
作者:
Jaynal Abedin, Kishor Kumar Das
ISBN-10:
1785288814
出版年份:
2015
页数:
130
语言:
English
文件大小:
1.46 MB
文件格式:
PDF

图书描述

This book starts with the installation of R and how to go about using R and its libraries. We then discuss the mode of R objects and its classes and then highlight different R data types with their basic operations.

The primary focus on group-wise data manipulation with the split-apply-combine strategy has been explained with specific examples. The book also contains coverage of some specific libraries such as lubridate, reshape2, plyr, dplyr, stringr, and sqldf. You will not only learn about group-wise data manipulation, but also learn how to efficiently handle date, string, and factor variables along with different layouts of datasets using the reshape2 package.

By the end of this book, you will have learned about text manipulation using stringr, how to extract data from twitter using twitteR library, how to clean raw data, and how to structure your raw data for data mining.

下载地址

关注 过往记忆大数据 微信公众号,回复 4024 获取本书下载地址。

如图书无法下载,请加微信 fangzhen0219 反馈。
喜欢 (0)or分享 (0)
发表我的评论
取消评论

表情
本博客评论系统带有自动识别垃圾评论功能,请写一些有意义的评论,谢谢!