: For binary outcomes (e.g., "Success/Failure"), the glm() function with family = binomial is the standard for modeling how predictors influence the probability of an outcome.
: Display changes or flows between categorical variables over time using the ggalluvial package . Inferential Statistics and Modeling Analysis of categorical data with R
: Functions like factor() or as.factor() convert character vectors into categorical variables. : For binary outcomes (e
: By default, R orders levels alphabetically. For ordinal data (e.g., "Low", "Medium", "High"), you can define a specific order using the levels argument in factor() or functions in the forcats package . Descriptive Statistics : By default, R orders levels alphabetically
Analysis of categorical data in R involves specialized techniques for variables that represent qualitative characteristics, such as gender, region, or recovery status. Unlike continuous numerical data, categorical data—referred to as in R—is divided into discrete groups or "levels". Data Representation and Handling
: Standard bar plots can be created with base R's barplot() or the ggplot2 package using geom_bar() .