Frequency scores for each *saeculorum*, representing the commonality of each *saeculorum* within each mode in terms of the number of manuscripts it is used in and the number of instances within each manuscript.

The frequency score for each *saeculorum* is the average of:

- the ratio of (A) manuscripts containing each
*saeculorum*within mode X to (B) the total number of manuscripts with*saeculorum*in mode X, and - the ratio of (C) total appearances of each
*saeculorum*within mode X to the total number of mode X*differentiae*within the dataset.

For example, there are 30, 627 mode 1 *differentiae* across 152 manuscripts; 22, 398 of these *differentiae* across 132 manuscripts use the *saeculorum* A-A-G-F. Therefore, the frequency score of this *saeculorum* is:

*Saeculorum* frequency score = [(A ÷ B) + (C ÷ D)] ÷ 2

= [(132 ÷ 152) + (21,858 ÷ 30,316)] ÷ 2

= [0.87 + 0.72] ÷ 2

= 0.79

Select each mode at the top to browse its *saeculorum* frequency scores.