Indeholder "1. About", "2. Programming for people", " 2.1 About this chapter", " 2.2 RStudio", " 2.2.1 Working in the console", " 2.3 R Markdown", " 2.3.1 Or use the script...", " 2.4 Before you can start coding", " 2.4.1 Creating a 'project'", " 2.4.2 Reading in files", " 2.4.3 Packages", "3. Basic concepts", " 3.1 Getting Your Feet Wet", " 3.2 Data types", " 3.2.0.1 NULL", " 3.2.0.2 NA", " 3.3 Variables", " 3.4 Data Structures", " 3.4.1 Vectors", " 3.4.2 Indexes", " 3.4.3 Data frames", " 3.4.4 Subsetting", " 3.4.5 Other types of data structures that we will meet", " 3.5 Inspecting data", "4. Conditions", " 4.1 What is a condition", " 4.2 How to run a condition", " 4.3 Long conditions", " 4.3.1 Boolean Logic operators", " 4.3.2 Example of long conditions", " 4.3.3 Multiple conditions using nesting", " 4.4 Other ways to write conditions", "5. Functions", " 5.1 What is a function and how do we access it?", " 5.2 Create your own function", " 5.3 Brackets", " 5.3.1 () is for grouping and function-arguments", " 5.3.2 {} - as 'then' in conditions", " 5.3.3 [] - to capture element index", "6. Repetitions - loops and apply()", " 6.1 Loops", " 6.1.1 for-loops in R", " 6.1.2 while-loops", " 6.2 The apply() family", "7. Strings and regular expressions", " 7.1 Use cases", " 7.2 Basic string handling", " 7.2.1 Concatenation - gluing text together", " 7.2.2 Splitting strings into smaller parts", " 7.2.3 Substituting strings - 'search and replace'", " 7.3 Other string handles", " 7.4 The grammar of regular expression", " 7.4.1 Elements in matching grammar", " 7.4.2 Anchors and Repetitions", " 7.5 Examples using the grammar of regular expression", " 7.5.1 Test and match using symbolic patterns", " 7.5.2 Extraction based on match", " 7.5.3 Context-based extraction", " 7.5.4 Grouping", " 7.5.5 More help on regex", "8. Code Structure", " 8.1 Structure 101", " 8.1.1 1. Code header", " 8.1.2 2. Read in packages", " 8.1.3 3. Functions you have created or borrowed (if any)", " 8.1.4 4. Read in data and check it", " 8.1.5 5. Wrangling", " 8.1.6 6. Analysis", " 8.1.7 7. Write files", " 8.2 Working together", " 8.2.1 Github", " 8.2.2 Start code that helps finding where you are", " 8.3 Debugging - correcting errors", "9. Coding with AI", " 9.1 Creating Code", " 9.2 Help debugging code", " 9.3 Concept clarification", " 9.4 Other options".

I forhold til version 1.0 er der tilføjet et afsnit 9.0 om brug af ChatGPT 3.5 til at hjælpe med at skrive programmer i R. Jeg kendte ikke navnet Likert Scale, men det er vist bare at man giver fx 5 mulige svar til hvert testspørgsmål. Jeg har også lige mødt begrebet "salience bias", men ikke i den her bog. ( )

Indeholder "1. About", "2. Programming for people", " 2.1 About this chapter", " 2.2 RStudio", " 2.2.1 Working in the console", " 2.3 R Markdown", " 2.3.1 Or use the script...", " 2.4 Before you can start coding", " 2.4.1 Creating a 'project'", " 2.4.2 Reading in files", " 2.4.3 Packages", "3. Basic concepts", " 3.1 Getting Your Feet Wet", " 3.2 Data types", " 3.2.0.1 NULL", " 3.2.0.2 NA", " 3.3 Variables", " 3.4 Data Structures", " 3.4.1 Vectors", " 3.4.2 Indexes", " 3.4.3 Data frames", " 3.4.4 Subsetting", " 3.4.5 Other types of data structures that we will meet", " 3.5 Inspecting data", "4. Conditions", " 4.1 What is a condition", " 4.2 How to run a condition", " 4.3 Long conditions", " 4.3.1 Boolean Logic operators", " 4.3.2 Example of long conditions", " 4.3.3 Multiple conditions using nesting", " 4.4 Other ways to write conditions", "5. Functions", " 5.1 What is a function and how do we access it?", " 5.2 Create your own function", " 5.3 Brackets", " 5.3.1 () is for grouping and function-arguments", " 5.3.2 {} - as 'then' in conditions", " 5.3.3 [] - to capture element index", "6. Repetitions - loops and apply()", " 6.1 Loops", " 6.1.1 for-loops in R", " 6.1.2 while-loops", " 6.2 The apply() family", "7. Strings and regular expressions", " 7.1 Use cases", " 7.2 Basic string handling", " 7.2.1 Concatenation - gluing text together", " 7.2.2 Splitting strings into smaller parts", " 7.2.3 Substituting strings - 'search and replace'", " 7.3 Other string handles", " 7.4 The grammar of regular expression", " 7.4.1 Elements in matching grammar", " 7.4.2 Anchors and Repetitions", " 7.5 Examples using the grammar of regular expression", " 7.5.1 Test and match using symbolic patterns", " 7.5.2 Extraction based on match", " 7.5.3 Context-based extraction", " 7.5.4 Grouping", " 7.5.5 More help on regex", "8. Code Structure", " 8.1 Structure 101", " 8.1.1 1. Code header", " 8.1.2 2. Read in packages", " 8.1.3 3. Functions you have created or borrowed (if any)", " 8.1.4 4. Read in data and check it", " 8.1.5 5. Wrangling", " 8.1.6 6. Analysis", " 8.1.7 7. Write files", " 8.2 Working together", " 8.2.1 Github", " 8.2.2 Start code that helps finding where you are", " 8.3 Debugging - correcting errors".

Teksten er genereret med R Markdown hvilket desværre ses nogle steder undervejs. Der er of cause også nogle stave og slåfejl, så man kan pynte meget på teksten ved at printe den ud og gå igang med en rød tusch. Eksempler og omgivende tekst er til gengæld fine. ( )