What’s a categorical variable?

Categorical variables have two or more groups without order, while quantitative variables have numerical values. Ordinal variables have an inherent order, and data tables and bar charts are used to analyze categorical data. A categorical variable, also called a nominal variable, is a type of variable that can have two or more groups, or categories, […]

What’s categorical perception?

Categorical perception affects how humans and animals perceive things in the same class, with differences within categories often being overlooked. It is unclear whether it is learned or innate. Perception can also be influenced by language and other factors, and computational methods are used to study it. Categorical perception can help the brain process information […]

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