A command line tool to visually characterise a bibliographic collection in terms of publication dates and available bibliographic identifier coverage.
From a directory containing one or more binary MARC21 format for bibliographic data files (with extension .mrc)
representing a bibliographic collection, run:
./plotMARC.py
The script will process the MARC files using pymarc,
and produce a single <directoryname>.png image containing a 3-way Venn diagram displaying the number of records with the following bibliographic identifiers:
- ISBN
- OCN (OCLC number)
- LCCN (Library of Congress number)
and a histogram showing the publication dates in the bib records.
Summary for Test Collection:
Record counts for bibliographic identifiers present in this collection:
Total: 248632 100.00%
ISBN: 175593 70.62%
LCCN: 130780 52.60%
OCN : 82801 33.30%
No Id: 42263 17.00%
Install these using pip:
pip install -r requirements.txt
Copyright © 2022 Charles Horn.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.