Fetches all the project-year combinations you can possibly set using the form
fields at CZVV site https://vysledky.cermat.cz/statistika/. Useful
if you plan to mine only a subset of the data in mine_links().
Arguments
- force
Force a refresh of the data, even if cached. Defaults to
FALSE.- base_url
Base URL of the CERMAT website. Defaults to https://vysledky.cermat.cz/statistika/. Can be set session-wide with
options(cermine.base_url = <your_url>).