The analyzer provides a workable way to see the evolution that the security alerts have had through the different commits of a GitHub repository. The source code is described in its wiki.
To work with the analyzer you have to download the full project and execute in the pip console the following commands:
pip install pandas
pip install influxdb
pip install influxdb-client
pip install pyyaml
pip install -U PyYAML
If you want to know more about Dependabot Security Alerts Analyzer I recommend you to read my Bachelor thesis, you can find it here. Moreover, here are the results of the manual test performed.