For example, for the variable of age: In this scenario, age would be treated as an ordinal variable because a natural order exists among the potential values. In talking about variables, sometimes you hear variables being described as categorical (or sometimes nominal), or ordinal, or interval.
Age could also be operationalized as an age group, like child, adolescent, adult, senior, and others. Under certain circumstances, age can be treated as continuous if the focus is on specific relationships where age is assumed to vary linearly, or if the age groupings are broad, thereby. Ordinal measurement arranges age groups in a logical sequence, while interval measurement allows for equal intervals between age values but lacks a true zero point.
All these are categorical age and are useful for the particular study where. Ordinal data and ratio data are similar because they can both be ranked in a logical. When age is used as a categorical variable (either nominal or ordinal), it’s often necessary to encode it into a numerical format for use in machine learning algorithms or other. Below we will define these terms and explain why.
These categories can be ranked from. A variable is a characteristic that can be measured and that can assume different values. Height, age, income, province or country of birth, grades obtained at school and type of housing are all.