Unit root and cointegration tests encountered in applied 
 econometric analysis are implemented.

Provide the URL checking tools available in R 4.1+ as a
    package for earlier versions of R. Also uses concurrent requests so
    can be much faster than the serial versions.

Offers tools for parsing and analyzing URL datasets,
    extracting key components and identifying common patterns. It aids in 
    examining website architecture and identifying SEO issues, helping users
    optimize web presence and content strategy.

A fast and simple 'URL' parser package for 'R'. This package provides
    functions to parse 'URLs' into their components, such as scheme, user, password, host, port,
    path, query, and fragment.

Allows using two URL shortening services, which also provide
    expanding and analytic functions. Specifically developed for 'Bit.ly' (which requires OAuth 2.0) and 'is.gd' (no API key).

A toolkit for all URL-handling needs, including encoding and decoding,
    parsing, parameter extraction and modification. All functions are
    designed to be both fast and entirely vectorised. It is intended to be
    useful for people dealing with web-related datasets, such as server-side
    logs, although may be useful for other situations involving large sets of
    URLs.

Seasonal unit roots and seasonal stability tests.
    P-values based on response surface regressions are available for both tests.
    P-values based on bootstrap are available for seasonal unit root tests.

Conduct unit root tests based on 'EViews' (<https://eviews.com>) routines and report them in tables. 'EViews' (Econometric Views) is a commercial software for econometrics.

S3 classes and methods for manipulation with georeferenced raster data: reading/writing, processing, multi-panel visualization.

Updated versions of the 1970's "US State Facts and Figures"
    objects from the 'datasets' package included with R. The new data is
    compiled from a number of sources, primarily from United States Census
    Bureau or the relevant federal agency.