R for Data Science. Import, Tidy, Transform, Visualize, and Model Data

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Autorzy:: Hadley Wickham, Garrett Grolemund

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Stron:: 520
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209,00 zł

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Learn how to use R to turn raw data into insight, knowledge, and understanding. This book introduces you to R, RStudio, and the tidyverse, a collection of R packages designed to work together to make data science fast, fluent, and fun. Suitable for readers with no previous programming experience, R for Data Science is designed to get you doing data science as quickly as possible.

Authors Hadley Wickham and Garrett Grolemund guide you through the steps of importing, wrangling, exploring, and modeling your data and communicating the results. Youâ??ll get a complete, big-picture understanding of the data science cycle, along with basic tools you need to manage the details. Each section of the book is paired with exercises to help you practice what youâ??ve learned along the way.

Youâ??ll learn how to:

Wrangleâ??transform your datasets into a form convenient for analysis
Programâ??learn powerful R tools for solving data problems with greater clarity and ease
Exploreâ??examine your data, generate hypotheses, and quickly test them
Modelâ??provide a low-dimensional summary that captures true "signals" in your dataset
Communicateâ??learn R Markdown for integrating prose, code, and results

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O autorach książki

Hadley Wickham pracuje w RStudio. Jest również członkiem fundacji R Foundation. Tworzy ciekawe narzędzia do analizy danych. Jest również naukowcem, autorem książek i wykładowcą. Angażuje się w promowanie języka R jako narzędzia do analizy danych.

Garrett Grolemund jest statystykiem, nauczycielem i programistą R. Napisał powszechnie znany pakiet lubridate. Grolemund jest popularnym instruktorem języka R i analizy danych — w tym zakresie pomagał takim firmom, jak Google, eBay, Roche i inne.

Hadley Wickham, Garrett Grolemund - pozostałe książki

Niniejsza książka jest przystępnie napisanym przewodnikiem po języku R i narzędziach służących do analizy danych. Zawarto tu wyczerpujące wprowadzenie do języka R, programu RStudio i tidyverse. Zaprezentowano zestaw pakietów R, które znacznie poprawiają komfort pracy podczas analizy danych. Wyjaśniono znaczenie poszczególnych etapów analizy danych: ich importowania, oczyszczania, przekształcania, modelowania, wizualizowania, a także skutecznego komunikowania wiedzy płynącej z danych. Mimo że książka dotyczy narzędzi programistycznych, skorzystają z niej nie tylko programiści.
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Język R. Kompletny zestaw narzędzi dla analityków danych

Hadley Wickham, Garrett Grolemund

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Turn your R code into packages that others can easily download and use. This practical book shows you how to bundle reusable R functions, sample data, and documentation together by applying author Hadley Wickham’s package development philosophy. In the process, you’ll work with devtools, roxygen, and testthat, a set of R packages that automate comm
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R Packages

Hadley Wickham

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Promocja Promocja 2za1

Learn how to program by diving into the R language, and then use your newfound skills to solve practical data science problems. With this book, you’ll learn how to load data, assemble and disassemble data objects, navigate R’s environment system, write your own functions, and use all of R’s programming tools.RStudio Master Instructor Garrett Grolem
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Hands-On Programming with R. Write Your Own Functions and Simulations

Garrett Grolemund

(118,15 zł najniższa cena z 30 dni)

118.15 zł ~~149.00 zł (-21%)~~
Promocja Promocja 2za1

Turn your R code into packages that others can easily install and use. With this fully updated edition, developers and data scientists will learn how to bundle reusable R functions, sample data, and documentation together by applying the package development philosophy used by the team that maintains the "tidyverse" suite of packages. In the process
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R Packages. 2nd Edition

Hadley Wickham, Jennifer Bryan

(203,15 zł najniższa cena z 30 dni)

211.65 zł ~~249.00 zł (-15%)~~
Promocja Promocja 2za1

Use R to turn data into insight, knowledge, and understanding. With this practical book, aspiring data scientists will learn how to do data science with R and RStudio, along with the tidyverse—a collection of R packages designed to work together to make data science fast, fluent, and fun. Even if you have no programming experience, this updated edi
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R for Data Science. 2nd Edition

Hadley Wickham, Mine Çetinkaya-Rundel, Garrett Grolemund

(245,65 zł najniższa cena z 30 dni)

254.15 zł ~~299.00 zł (-15%)~~
Promocja Promocja 2za1

Master the Shiny web framework—and take your R skills to a whole new level. By letting you move beyond static reports, Shiny helps you create fully interactive web apps for data analyses. Users will be able to jump between datasets, explore different subsets or facets of the data, run models with parameter values of their choosing, customize visual
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Mastering Shiny

Hadley Wickham

(220,15 zł najniższa cena z 30 dni)

228.65 zł ~~269.00 zł (-15%)~~

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Szczegóły książki

ISBN Ebooka:: 978-14-919-1034-4, 9781491910344
Data wydania ebooka :: 2016-12-12 Data wydania ebooka często jest dniem wprowadzenia tytułu do sprzedaży i może nie być równoznaczna z datą wydania książki papierowej. Dodatkowe informacje możesz znaleźć w darmowym fragmencie. Jeśli masz wątpliwości skontaktuj się z nami sklep@helion.pl.
Język publikacji:: angielski
Rozmiar pliku ePub:: 29.2MB
Rozmiar pliku Mobi:: 71.5MB

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Kategorie:
Programowanie » Inne - Programowanie
Big Data » Analiza danych

Spis treści książki

Preface
- What You Will Learn
- How This Book Is Organized
- What You Wont Learn
  - Big Data
  - Python, Julia, and Friends
  - Nonrectangular Data
  - Hypothesis Confirmation
- Prerequisites
  - R
  - RStudio
  - The Tidyverse
  - Other Packages
- Running R Code
- Getting Help and Learning More
- Acknowledgments
- Online Version
- Conventions Used in This Book
- Using Code Examples
- OReilly Safari
- How to Contact Us
I. Explore
1. Data Visualization with ggplot2
- Introduction
  - Prerequisites
- First Steps
  - The mpg Data Frame
  - Creating a ggplot
  - A Graphing Template
  - Exercises
- Aesthetic Mappings
  - Exercises
- Common Problems
- Facets
  - Exercises
- Geometric Objects
  - Exercises
- Statistical Transformations
  - Exercises
- Position Adjustments
  - Exercises
- Coordinate Systems
  - Exercises
- The Layered Grammar of Graphics
2. Workflow: Basics
- Coding Basics
- Whats in a Name?
- Calling Functions
  - Exercises
3. Data Transformation with dplyr
- Introduction
  - Prerequisites
  - nycflights13
  - dplyr Basics
- Filter Rows with filter()
  - Comparisons
  - Logical Operators
  - Missing Values
  - Exercises
- Arrange Rows with arrange()
  - Exercises
- Select Columns with select()
  - Exercises
- Add New Variables with mutate()
  - Useful Creation Functions
  - Exercises
- Grouped Summaries with summarize()
  - Combining Multiple Operations with the Pipe
  - Missing Values
  - Counts
  - Useful Summary Functions
  - Grouping by Multiple Variables
  - Ungrouping
  - Exercises
- Grouped Mutates (and Filters)
  - Exercises
4. Workflow: Scripts
- Running Code
- RStudio Diagnostics
  - Exercises
5. Exploratory Data Analysis
- Introduction
  - Prerequisites
- Questions
- Variation
  - Visualizing Distributions
  - Typical Values
  - Unusual Values
  - Exercises
- Missing Values
  - Exercises
- Covariation
  - A Categorical and Continuous Variable
  - Exercises
  - Two Categorical Variables
  - Exercises
  - Two Continuous Variables
  - Exercises
- Patterns and Models
- ggplot2 Calls
- Learning More
6. Workflow: Projects
- What Is Real?
- Where Does Your Analysis Live?
- Paths and Directories
- RStudio Projects
- Summary
II. Wrangle
7. Tibbles with tibble
- Introduction
  - Prerequisites
- Creating Tibbles
- Tibbles Versus data.frame
  - Printing
  - Subsetting
- Interacting with Older Code
  - Exercises
8. Data Import with readr
- Introduction
  - Prerequisites
- Getting Started
  - Compared to Base R
  - Exercises
- Parsing a Vector
  - Numbers
  - Strings
  - Factors
  - Dates, Date-Times, and Times
  - Exercises
- Parsing a File
  - Strategy
  - Problems
  - Other Strategies
- Writing to a File
- Other Types of Data
9. Tidy Data with tidyr
- Introduction
  - Prerequisites
- Tidy Data
  - Exercises
- Spreading and Gathering
  - Gathering
  - Spreading
  - Exercises
- Separating and Pull
  - Separate
  - Unite
  - Exercises
- Missing Values
  - Exercises
- Case Study
  - Exercises
- Nontidy Data
10. Relational Data with dplyr
- Introduction
  - Prerequisites
- nycflights13
  - Exercises
- Keys
  - Exercises
- Mutating Joins
  - Understanding Joins
  - Inner Join
  - Outer Joins
  - Duplicate Keys
  - Defining the Key Columns
  - Exercises
  - Other Implementations
- Filtering Joins
  - Exercises
- Join Problems
- Set Operations
11. Strings with stringr
- Introduction
  - Prerequisites
- String Basics
  - String Length
  - Combining Strings
  - Subsetting Strings
  - Locales
  - Exercises
- Matching Patterns with Regular Expressions
  - Basic Matches
  - Exercises
  - Anchors
  - Exercises
  - Character Classes and Alternatives
  - Exercises
  - Repetition
  - Exercises
  - Grouping and Backreferences
  - Exercises
- Tools
  - Detect Matches
  - Exercises
  - Extract Matches
  - Exercises
  - Grouped Matches
  - Exercises
  - Replacing Matches
  - Exercises
  - Splitting
  - Exercises
  - Find Matches
- Other Types of Pattern
  - Exercises
- Other Uses of Regular Expressions
- stringi
  - Exercises
12. Factors with forcats
- Introduction
  - Prerequisites
- Creating Factors
- General Social Survey
  - Exercises
- Modifying Factor Order
  - Exercises
- Modifying Factor Levels
  - Exercises
13. Dates and Times with lubridate
- Introduction
  - Prerequisites
- Creating Date/Times
  - From Strings
  - From Individual Components
  - From Other Types
  - Exercises
- Date-Time Components
  - Getting Components
  - Rounding
  - Setting Components
  - Exercises
- Time Spans
  - Durations
  - Periods
  - Intervals
  - Summary
  - Exercises
- Time Zones
III. Program
14. Pipes with magrittr
- Introduction
  - Prerequisites
- Piping Alternatives
  - Intermediate Steps
  - Overwrite the Original
  - Function Composition
  - Use the Pipe
- When Not to Use the Pipe
- Other Tools from magrittr
15. Functions
- Introduction
  - Prerequisites
- When Should You Write a Function?
  - Exercises
- Functions Are for Humans and Computers
  - Exercises
- Conditional Execution
  - Conditions
  - Multiple Conditions
  - Code Style
  - Exercises
- Function Arguments
  - Choosing Names
  - Checking Values
  - Dot-Dot-Dot ()
  - Lazy Evaluation
  - Exercises
- Return Values
  - Explicit Return Statements
  - Writing Pipeable Functions
- Environment
16. Vectors
- Introduction
  - Prerequisites
- Vector Basics
- Important Types of Atomic Vector
  - Logical
  - Numeric
  - Character
  - Missing Values
  - Exercises
- Using Atomic Vectors
  - Coercion
  - Test Functions
  - Scalars and Recycling Rules
  - Naming Vectors
  - Subsetting
  - Exercises
- Recursive Vectors (Lists)
  - Visualizing Lists
  - Subsetting
  - Lists of Condiments
  - Exercises
- Attributes
- Augmented Vectors
  - Factors
  - Dates and Date-Times
  - Tibbles
  - Exercises
17. Iteration with purrr
- Introduction
  - Prerequisites
- For Loops
  - Exercises
- For Loop Variations
  - Modifying an Existing Object
  - Looping Patterns
  - Unknown Output Length
  - Unknown Sequence Length
  - Exercises
- For Loops Versus Functionals
  - Exercises
- The Map Functions
  - Shortcuts
  - Base R
  - Exercises
- Dealing with Failure
- Mapping over Multiple Arguments
  - Invoking Different Functions
- Walk
- Other Patterns of For Loops
  - Predicate Functions
  - Reduce and Accumulate
  - Exercises
IV. Model
18. Model Basics with modelr
- Introduction
  - Prerequisites
- A Simple Model
  - Exercises
- Visualizing Models
  - Predictions
  - Residuals
  - Exercises
- Formulas and Model Families
  - Categorical Variables
  - Interactions (Continuous and Categorical)
  - Interactions (Two Continuous)
  - Transformations
  - Exercises
- Missing Values
- Other Model Families
19. Model Building
- Introduction
  - Prerequisites
- Why Are Low-Quality Diamonds More Expensive?
  - Price and Carat
  - A More Complicated Model
  - Exercises
- What Affects the Number of Daily Flights?
  - Day of Week
  - Seasonal Saturday Effect
  - Computed Variables
  - Time of Year: An Alternative Approach
  - Exercises
- Learning More About Models
20. Many Models with purrr and broom
- Introduction
  - Prerequisites
- gapminder
  - Nested Data
  - List-Columns
  - Unnesting
  - Model Quality
  - Exercises
- List-Columns
- Creating List-Columns
  - With Nesting
  - From Vectorized Functions
  - From Multivalued Summaries
  - From a Named List
  - Exercises
- Simplifying List-Columns
  - List to Vector
  - Unnesting
  - Exercises
- Making Tidy Data with broom
V. Communicate
21. R Markdown
- Introduction
  - Prerequisites
- R Markdown Basics
  - Exercises
- Text Formatting with Markdown
  - Exercises
- Code Chunks
  - Chunk Name
  - Chunk Options
  - Table
  - Caching
  - Global Options
  - Inline Code
  - Exercises
- Troubleshooting
- YAML Header
  - Parameters
  - Bibliographies and Citations
- Learning More
22. Graphics for Communication with ggplot2
- Introduction
  - Prerequisites
- Label
  - Exercises
- Annotations
  - Exercises
- Scales
  - Axis Ticks and Legend Keys
  - Legend Layout
  - Replacing a Scale
  - Exercises
- Zooming
- Themes
- Saving Your Plots
  - Figure Sizing
  - Other Important Options
- Learning More
23. R Markdown Formats
- Introduction
- Output Options
- Documents
- Notebooks
- Presentations
- Dashboards
- Interactivity
  - htmlwidgets
  - Shiny
- Websites
- Other Formats
- Learning More
24. R Markdown Workflow
Index