Tools for downloading and analyzing floristic quality assessment data. 
  See Freyman et al. (2015) <doi:10.1111/2041-210X.12491> for more information 
  about floristic quality assessment and the associated database.

A "tabular-data-resource" (<https://specs.frictionlessdata.io/tabular-data-resource/>) is a simple format to describe a singular tabular data resource such as a CSV file. It includes support both for metadata such as author and title and a schema to describe the data, for example the types of the fields/columns in the data. Create a tabular-data-resource by providing a data.frame and specifying metadata. Write and read tabular-data-resources to and from disk.

Methods to "add" two R tables; also an alternative
     interpretation of named vectors as generalized R tables, so that
     c(a=1,b=2,c=3) + c(b=3,a=-1) will return c(b=5,c=3).  Uses
     'disordR' discipline (Hankin, 2022,
     <doi:10.48550/arXiv.2210.03856>).  Extraction and replacement
     methods are provided.  The underlying mathematical structure is
     the Free Abelian group, hence the name.  To cite in publications
     please use Hankin (2023) <doi:10.48550/arXiv.2307.13184>.

Maximum likelihood estimation of the parameters of a fractionally
   differenced ARIMA(p,d,q) model (Haslett and Raftery, Appl.Statistics, 1989);
   including inference and basic methods.  Some alternative algorithms to estimate "H".

Calculate numerical asymptotic distribution functions of likelihood ratio 
    statistics for fractional unit root tests and tests of cointegration rank. 
    For these distributions, the included functions calculate critical values 
    and P-values used in unit root tests, cointegration tests, and rank tests 
    in the Fractionally Cointegrated Vector Autoregression (FCVAR) model.
    The functions implement procedures for tests described in the following articles:
    Johansen, S. and M. Ø. Nielsen (2012) <doi:10.3982/ECTA9299>,
    MacKinnon, J. G. and M. Ø. Nielsen (2014) <doi:10.1002/jae.2295>.