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Wrangling Data in the Tidyverse · LearnSpace
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Wrangling Data in the Tidyverse

Курс от Johns Hopkins University
Уровень не указан≈ 14.1 чАнглийский
О курсеНавыкиПрограммаПреподаватели

О курсе

Data never arrive in the condition that you need them in order to do effective data analysis. Data need to be re-shaped, re-arranged, and re-formatted, so that they can be visualized or be inputted into a machine learning algorithm. This course addresses the problem of wrangling your data so that you can bring them under control and analyze them effectively. The key goal in data wrangling is transforming non-tidy data into tidy data. This course covers many of the critical details about handling tidy and non-tidy data in R such as converting from wide to long formats, manipulating tables with the dplyr package, understanding different R data types, processing text data with regular expressions, and conducting basic exploratory data analyses. Investing the time to learn these data wrangling techniques will make your analyses more efficient, more reproducible, and more understandable to your data science team. In this specialization we assume familiarity with the R programming language. If you are not yet familiar with R, we suggest you first complete R Programming before returning to complete this course.

Навыки, которые вы освоите

Data WranglingTidyverse (R Package)Data ManipulationData TransformationText MiningR ProgrammingStatistical ProgrammingData AnalysisData ProcessingR (Software)Exploratory Data AnalysisCorrelation AnalysisData Preprocessing

Программа курса

6 модулей · 69 учебных материалов

01Wrangling Data in the Tidyverse21 материалов

About This Course

About This CourseЧтениеTidy Data ReviewЧтение

Reshaping Data

Reshaping DataЧтениеWide DataЧтение

Учитесь у экспертов

Shannon Ellis, PhD

Assistant Teaching Professor, Cognitive Science

Stephanie Hicks, PhD

Assistant Professor, Biostatistics

Roger D. Peng, PhD

Professor of Statistics and Data Sciences

Carrie Wright, PhD

Senior Staff Scientist

Wrangling Data in the Tidyverse
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Обучение откроется на Coursera
в новой вкладке

Обучение на Coursera

≈ 14.1 ч

6 модулей

Язык: Английский

Часть программы вашего университета
Long DataЧтение
Reshaping DataЧтение
Reshaping Data QuizЗадание

Data Wrangling

Data WranglingЧтениеR PackagesЧтениеThe Pipe OperatorЧтениеFiltering DataЧтениеReorderingЧтениеCreating New ColumnsЧтениеSeparating ColumnsЧтениеMerging ColumnsЧтениеCleaning Column NamesЧтениеCombining Data Across Data FramesЧтениеGrouping DataЧтениеSummarizing DataЧтениеOperations Across ColumnsЧтениеData Wrangling QuizЗадание
02Working With Factors, Dates, and Times16 материалов

Working with Factors

Working with FactorsЧтениеFactor ReviewЧтениеManually Changing the Labels of Factor Levels: fct_releve()ЧтениеKeeping the Order of the Factor Levels: fct_inorder()ЧтениеAdvanced FactoringЧтениеRe-ordering Factor Levels by Frequency: fct_infreq()ЧтениеReversing Order Levels: fct_rev()ЧтениеRe-ordering Factor Levels by Another Variable: fct_reorder()ЧтениеCombining Several Levels into One: fct_recode()ЧтениеConverting Numeric Levels to factors: ifelse() + factor()ЧтениеWorking With Factors QuizЗадание

Working With Dates and Times

Dates and Times BasicsЧтениеCreating Dates and Date-Time ObjectsЧтениеWorking with DatesЧтениеTime SpansЧтениеWorking With Dates QuizЗадание
03Working With Strings and Text and Functional Programming15 материалов

Working with Strings

Working with StringsЧтениеstringrЧтениеString BasicsЧтениеRegular ExpressionsЧтениеglueЧтениеWorking With Strings QuizЗадание

Working With Text

Tidy Text FormatЧтениеSentiment AnalysisЧтениеWord and Document FrequencyЧтение

Functional Programming

Functional ProgrammingЧтениеFor Loops vs. FunctionalsЧтениеmap FunctionsЧтениеMultiple VectorsЧтениеAnonymous FunctionsЧтениеFunctional Programming QuizЗадание
04Exploratory Data Analysis2 материалов

Exploratory Data Analysis

Exploratory Data AnalysisЧтениеGeneral Principles of EDAЧтение
05Case Studies13 материалов

Case Studies

Case StudiesЧтение

Case Study #1: Health Expenditures

Case Study #1: Health ExpendituresЛабораторнаяHealthcare Coverage DataЧтениеHealthcare Spending DataЧтениеJoin the DataЧтение

Case Study #2: Firearms

Case Study #2: FirearmsЛабораторнаяCensus DataЧтениеViolent CrimeЧтениеBrady ScoresЧтениеThe Counted Fatal ShootingsЧтениеUnemployment DataЧтениеPopulation Density: 2015ЧтениеFirearm OwnershipЧтение
06Project: Wrangling data in the Tidyverse2 материалов

Project

Important information before you start the projectЧтениеWrangling Data in the Tidyverse Course ProjectЗадание