A problem solving environment (PSE) for fitting separable
    nonlinear models to measurements arising in physics and chemistry
    experiments, as described by Mullen & van Stokkum (2007)
    <doi:10.18637/jss.v018.i03> for its use in fitting time resolved
    spectroscopy data, and as described by Laptenok et al. (2007)
    <doi:10.18637/jss.v018.i08> for its use in fitting Fluorescence
    Lifetime Imaging Microscopy (FLIM) data, in the study of Förster
    Resonance Energy Transfer (FRET).  `TIMP` also serves as the
    computation backend for the `GloTarAn` software, a graphical user
    interface for the package, as described in Snellenburg et al. (2012)
    <doi:10.18637/jss.v049.i03>.

Functions for statistical analysis, prediction and control of time
 series based mainly on Akaike and Nakagawa (1988) <ISBN 978-90-277-2786-2>.

Provides an easy-to-use tind class representing time indices
    of different types (years, quarters, months, ISO 8601 weeks, dates,
    time of day, date-time, and arbitrary integer/numeric indices).
    Includes an extensive collection of functions for calendrical computations
    (including business applications), index conversions, index parsing,
    and other operations. Auxiliary classes representing time differences and
    time intervals (with set operations and index matching functionality) are
    also provided. All routines have been optimised for speed in order
    to facilitate computations on large datasets. More details regarding
    calendars in general and calendrical algorithms can be found in
    "Calendar FAQ" by Claus Tøndering <https://www.tondering.dk/claus/calendar.html>.

A universal non-uniform random number generator
  for quite arbitrary distributions with piecewise twice
  differentiable densities.

Parsing '(R)Markdown' files with numerous regular expressions can
    be fraught with peril, but it does not have to be this way. Converting
    '(R)Markdown' files to 'XML' using the 'commonmark' package allows
    in-memory editing via of 'markdown' elements via 'XPath' through the
    extensible 'R6' class called 'yarn'. These modified 'XML' representations
    can be written to '(R)Markdown' documents via an 'xslt' stylesheet which
    implements an extended version of 'GitHub'-flavoured 'markdown' so that you
    can tinker to your hearts content.