8  Title field: summary

MARC: 245a,b

Polish title field: title.R

Harmonize title metadata function: polish_title.R

Render title field: title.qmd

8.1 Complete Dataset Overview

• Unique accepted entries: 809964
• Unique discarded entries in original data (excluding NA cases): 0
• Original documents with non-NA titles: 1187813 / 1187813 (100%)
• Original documents with missing (NA) titles 0 / 1187813 documents (0%)

8.2 Subset Analysis: 1809-1917

• Unique accepted entries: 47857
• Unique discarded entries in original data (excluding NA cases): 0

Top-20 titles and their title counts for the 1809-1917 period

Frequency of unique titles: