Data Types

There are only two data types in Statistiku: numerical data and categorical data.

Numerical Data/Variable

Numerical data (also known as quantitative data) is a numerical measurement expressed by numbers. These data have meaning as a measurement, such as a person's height, weight, IQ, or blood pressure; or they're a count, such as the number of stock shares a person owns, how many teeth a cat has, or how many pages you can read of your favorite book before you fall asleep.

A variable will be considered as numerical variable if it contains all numerical data and does not have a label. Statistiku uses dot (.) as a decimal separator and does not need any thousand separator for numerical data. Statistiku uses hyphen "-" (not "–" or "—") to indicate a negative quantity.

Categorical Data/Variable

Categorical data represent characteristics such as a person's gender, marital status, hometown, or the types of movies they like. Categorical data can take on numerical values (such as "1" indicating male and "2" indicating female), but those numbers do not have mathematical meaning.

A variable will be considered as categorical variable if it contains some categorical data, or numerical data which does have a label. Numerical variable can be used as categorical variable too.