Predom
Predom is a term used in statistics and data analysis to denote a simple measure of dominance within a categorical dataset. It is commonly described as the predominance proportion of the most frequent category. The exact definition of Predom is not standardized, and its interpretation can vary by field, which means it may be used informally rather than as a formal index.
Calculation: Given N observations across k categories, let f_i be the frequency of category i and p_i
Interpretation and uses: A high Predom indicates strong concentration in a single category; a low Predom indicates
Limitations: Predom discards information about all but the top category and can be misleading if there are
See also: Dominance, Predominance, Diversity index, Herfindahl index, Shannon index, Simpson index.