Data Manipulation with R 2024 pdf epub mobi 电子书

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发表于2024-11-21

Data Manipulation with R 2024 pdf epub mobi 电子书

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Data Manipulation with R - Summary Notes Jianghao Wang wangjh@lreis.ac.cn Dec. 11, 2012: version 0.1 Reference Spector, P., Data manipulation with R. Use R! 2008, New York: Springer. ix, 152 p. Chapter 1 Data in R Modes and classes The mode function ret...

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出版者:Springer

作者:Phil Spector

出品人:

页数:164

译者:

出版时间:2008-03-19

价格:USD 54.95

装帧:Paperback

isbn号码:9780387747309

丛书系列:Use R

图书标签: R 统计数据处理 Statistics R语言数据分析 Programming stats

Data Manipulation with R 2024 pdf epub mobi 电子书图书描述

This book presents a wide array of methods applicable for reading data into R, and efficiently manipulating that data. In addition to the built-in functions, a number of readily available packages from CRAN (the Comprehensive R Archive Network) are also covered. All of the methods presented take advantage of the core features of R: vectorization, efficient use of subscripting, and the proper use of the varied functions in R that are provided for common data management tasks. Most experienced R users discover that, especially when working with large data sets, it may be helpful to use other programs, notably databases, in conjunction with R. Accordingly, the use of databases in R is covered in detail, along with methods for extracting data from spreadsheets and datasets created by other programs. Character manipulation, while sometimes overlooked within R, is also covered in detail, allowing problems that are traditionally solved by scripting languages to be carried out entirely within R. For users with experience in other languages, guidelines for the effective use of programming constructs like loops are provided. Since many statistical modeling and graphics functions need their data presented in a data frame, techniques for converting the output of commonly used functions to data frames are provided throughout the book.

Data Manipulation with R 2024 pdf epub mobi 电子书

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