Under general assumption, head motion is categorized into three degree of freedom, yaw, pitch, and roll.
The education variable reflects highest attainment and was categorized into "primary/no degree", "secondary" and "post-secondary" levels.
These continuous type adverse effects are often categorized into the degree of severity, but by retaining them on a continuous scale, the information is preserved and thereby more useful for predictions of different scenarios.
CAC scores were categorized into five degrees according to the cutoff values commonly used in the literature: ≤10 (minimal or none); 11 100 (mild calcification); 101 400 (moderate calcification); 401 1000 (severe calcification); and greater than 1,000 (extensive calcification) [ 21].
In general, the inputs for the fuzzy inference system (FIS) need to be fuzzified or categorized into levels or degrees such as low, medium, and high.
The known levels of education were categorized into two groups: university degree and no university degree, for statistical analysis using chi-square.
Educational level attained at age 26 years was categorized into five groups: (1) degree or higher; (2) A levels, usually attained at age 18 years, or their equivalents; (3) O levels, usually attained at age 16 years, or their equivalents; (4) certificate of secondary education, clerical course, or equivalent; and (5) none.
Although the Qingdao strains with branches are categorized into U. prolifera, the degree of branches was denser than that of other strains of U. prolifera.
Responses of serum HBV DNA and ALT were categorized into three groups according to degree of response to lamivudine treatment: continuous, unstable, and no response.
Educational status was based on the highest qualification attained and was categorized into 4 groups as follows: degree or equivalent, A-level or equivalent, O-level or equivalent, and less than O-level or no qualifications.
