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|a UAMI
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| 100 |
1 |
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|a Gillespie, Colin
|q (Colin Stevenson),
|e author.
|
| 245 |
1 |
0 |
|a Efficient R programming :
|b a practical guide to smarter programming /
|c Colin Gillespie and Robin Lovelace.
|
| 246 |
3 |
0 |
|a Practical guide to smarter programming
|
| 264 |
|
1 |
|a Sebastopol, CA :
|b O'Reilly Media,
|c 2016.
|
| 264 |
|
4 |
|c Ã2017
|
| 300 |
|
|
|a 1 online resource (viii, 203 pages) :
|b color illustrations
|
| 336 |
|
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|a text
|b txt
|2 rdacontent
|
| 337 |
|
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|a computer
|b c
|2 rdamedia
|
| 338 |
|
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|a online resource
|b cr
|2 rdacarrier
|
| 588 |
0 |
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|a Online resource; title from title page (Safari, viewed December 16, 2016).
|
| 504 |
|
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|a Includes bibliographical references and index.
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| 505 |
0 |
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|a Copyright; Table of Contents; Preface; Conventions Used in This Book; Using Code Examples; O'Reilly Safari; How to Contact Us; Acknowledgments; Colin; Robin; Chapter 1. Introduction; Prerequisites; Who This Book Is for and How to Use It; What Is Efficiency?; What Is Efficient R Programming?; Why Efficiency?; Cross-Transferable Skills for Efficiency; Touch Typing; Consistent Style and Code Conventions; Benchmarking and Profiling; Benchmarking; Benchmarking Example; Profiling; Book Resources; R Package; Online Version; References; Chapter 2. Efficient Setup; Prerequisites.
|
| 505 |
8 |
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|a Top Five Tips for an Efficient R SetupOperating System; Operating System and Resource Monitoring; R Version; Installing R; Updating R; Installing R Packages; Installing R Packages with Dependencies; Updating R Packages; R Startup; R Startup Arguments; An Overview of R's Startup Files; The Location of Startup Files; The .Rprofile File; Example .Rprofile File; The .Renviron File; RStudio; Installing and Updating RStudio; Window Pane Layout; RStudio Options; Autocompletion; Keyboard Shortcuts; Object Display and Output Table; Project Management; BLAS and Alternative R Interpreters.
|
| 505 |
8 |
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|a Testing Performance Gains from BLASOther Interpreters; Useful BLAS/Benchmarking Resources; References; Chapter 3. Efficient Programming; Prerequisites; Top Five Tips for Efficient Programming; General Advice; Memory Allocation; Vectorized Code; Communicating with the User; Fatal Errors: stop(); Warnings: warning(); Informative Output: message() and cat(); Invisible Returns; Factors; Inherent Order; Fixed Set of Categories; The Apply Family; Example: Movies Dataset; Type Consistency; Caching Variables; Function Closures; The Byte Compiler; Example: The Mean Function; Compiling Code; References.
|
| 505 |
8 |
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|a Chapter 4. Efficient WorkflowPrerequisites; Top Five Tips for Efficient Workflow; A Project Planning Typology; Project Planning and Management; Chunking Your Work; Making Your Workflow SMART; Visualizing Plans with R; Package Selection; Searching for R Packages; How to Select a Package; Publication; Dynamic Documents with R Markdown; R Packages; Reference; Chapter 5. Efficient Input/Output; Prerequisites; Top Five Tips for Efficient Data I/O; Versatile Data Import with rio; Plain-Text Formats; Differences Between fread() and read_csv(); Preprocessing Text Outside R; Binary File Formats.
|
| 505 |
8 |
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|a Native Binary Formats: Rdata or Rds?The Feather File Format; Benchmarking Binary File Formats; Protocol Buffers; Getting Data from the Internet; Accessing Data Stored in Packages; References; Chapter 6. Efficient Data Carpentry; Prerequisites; Top Five Tips for Efficient Data Carpentry; Efficient Data Frames with tibble; Tidying Data with tidyr and Regular Expressions; Make Wide Tables Long with gather(); Split Joint Variables with separate(); Other tidyr Functions; Regular Expressions; Efficient Data Processing with dplyr; Renaming Columns; Changing Column Classes; Filtering Rows.
|
| 590 |
|
|
|a O'Reilly
|b O'Reilly Online Learning: Academic/Public Library Edition
|
| 650 |
|
0 |
|a R (Computer program language)
|
| 650 |
|
6 |
|a R (Langage de programmation)
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| 650 |
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7 |
|a COMPUTERS
|x Programming Languages
|x General.
|2 bisacsh
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| 650 |
|
7 |
|a R (Computer program language)
|2 fast
|
| 700 |
1 |
|
|a Lovelace, Robin,
|e author.
|
| 776 |
0 |
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|i Print version:
|z 1491950781
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|w (OCoLC)935986805
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|u https://learning.oreilly.com/library/view/~/9781491950777/?ar
|z Texto completo (Requiere registro previo con correo institucional)
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