Import physiologic data stored in
    the European Data Format (EDF and EDF+) into R.
    Both EDF and EDF+ files are supported. Discontinuous
    EDF+ files are not yet supported.

Provides easy access to tidy education finance data using Bellwether's methodology 
    to combine NCES F-33 Survey, Census Bureau Small Area Income Poverty Estimates (SAIPE),
    and community data from the ACS 5-Year Estimates. The package simplifies
    downloading, caching, and filtering education finance data by year and state,
    enabling researchers and analysts to explore K-12 education funding patterns,
    revenue sources, expenditure categories, and demographic factors across 
    U.S. school districts.

Reads European Data Format files EDF and EDF+, see <http://www.edfplus.info>,
    BioSemi Data Format files BDF, see <http://www.biosemi.com/faq/file_format.htm>,
    and BDF+ files, see <http://www.teuniz.net/edfbrowser/bdfplus%20format%20description.html>.
    The files are read in two steps: first the header is read
    and then the signals (using the header object as a parameter).

In the USA, companies file different forms with the U.S. 
    Securities and Exchange Commission (SEC) through EDGAR (Electronic 
    Data Gathering, Analysis, and Retrieval system). The EDGAR 
    database automated system collects all the different necessary 
    filings and makes it publicly available. This package facilitates
    retrieving, storing, searching, and parsing of all the available 
    filings on the EDGAR server. It downloads filings from SEC 
    server in bulk with a single query. Additionally, it provides 
    various useful functions: extracts 8-K triggering events, extract
    "Business (Item 1)" and "Management's Discussion and Analysis(Item 7)"
    sections of annual statements, searches filings for desired 
    keywords, provides sentiment measures, parses filing header 
    information, and provides HTML view of SEC filings.

Provides a simple, ticker-based interface for retrieving fundamental
    financial data from the United States Securities and Exchange Commission's
    'EDGAR' 'XBRL' API <https://www.sec.gov/edgar/sec-api-documentation>. Functions
    return key financial ratios including earnings per share, return on equity,
    return on assets, debt-to-equity, current ratio, gross margin, operating
    margin, net margin, price-to-earnings, price-to-book, and dividend yield
    for any publicly traded U.S. company. Data is sourced directly from company
    10-K annual filings, requiring no API key or paid subscription. Designed for
    use in quantitative finance courses and research workflows.