A rich hierarchy of matrix classes, including triangular,
   symmetric, and diagonal matrices, both dense and sparse and with
   pattern, logical and numeric entries.   Numerous methods for and
   operations on these matrices, using 'LAPACK' and 'SuiteSparse' libraries.

methods, graphics, grid, stats, utils, lattice

not possible, since we use data/*.R *and* our classes

Douglas Bates [aut],
  Martin Maechler [aut, cre] (<https://orcid.org/0000-0002-8685-9910>),
  Timothy A. Davis [ctb] (SuiteSparse and 'cs' C libraries, notably
    CHOLMOD, AMD; collaborators listed in dir(pattern =
    '^[A-Z]+[.]txt$', full.names=TRUE, system.file('doc',
    'SuiteSparse', package='Matrix'))),
  Jens Oehlschlägel [ctb] (initial nearPD()),
  Jason Riedy [ctb] (condest() and onenormest() for octave, Copyright:
    Regents of the University of California),
  R Core Team [ctb] (base R matrix implementation)

The basic idea of latent semantic analysis (LSA) is, 
  that text do have a higher order (=latent semantic) structure which, 
  however, is obscured by word usage (e.g. through the use of synonyms 
  or polysemy). By using conceptual indices that are derived statistically 
  via a truncated singular value decomposition (a two-mode factor analysis) 
  over a given document-term matrix, this variability problem can be overcome.

Set configuration options on a per-package basis.
    Options set by a given package only apply to that package,
    other packages are unaffected.

Pretty Scientific Plotting with Minor-Tick and Log Minor-Tick
Support

Functions to make useful (and pretty) plots for scientific plotting. Additional plotting features are added for base plotting, with particular emphasis on making attractive log axis plots.

grDevices, graphics, stats, celestial (>= 1.4.1), MASS,
plotrix, sm, mapproj, RColorBrewer

This package uses the source code of zlib-1.2.5 to create
  libraries for systems that do not have these available via other
  means (most Linux and Mac users should have system-level access to
  zlib, and no direct need for this package). See the vignette for
  instructions on use.