Conditionally rotate or back-up files based on
    their size or the date of the last backup; inspired by the 'Linux'
    utility 'logrotate'.

Visualize networks using the 'javascript' library 'roughjs'. This allows to draw sketchy, hand-drawn-like networks.

Implementations of algorithms for data analysis based on the
    rough set theory (RST) and the fuzzy rough set theory (FRST). We not only
    provide implementations for the basic concepts of RST and FRST but also
    popular algorithms that derive from those theories. The methods included in the
    package can be divided into several categories based on their functionality:
    discretization, feature selection, instance selection, rule induction and
    classification based on nearest neighbors. RST was introduced by Zdzisław
    Pawlak in 1982 as a sophisticated mathematical tool to model and process
    imprecise or incomplete information. By using the indiscernibility relation for
    objects/instances, RST does not require additional parameters to analyze the
    data. FRST is an extension of RST. The FRST combines concepts of vagueness and
    indiscernibility that are expressed with fuzzy sets (as proposed by Zadeh, in
    1965) and RST.

Draw maps using the 'javascript' library 'roughjs'. This allows to draw sketchy, hand-drawn-like maps.

Decimal rounding is non-trivial in binary arithmetic.  ISO
  standard round to even is more rare than typically assumed as most decimal fractions
  are not exactly representable in binary.  Our 'roundX()' versions explore differences
  between current and potential future versions of round() in R.
  Further, provides (some partly related) C99 math lib functions not in base R.

Visualize the objects in orbits in 2D and 3D. The packages is under developing to plot the orbits of objects in polar coordinate system. See the examples in demo.

R functions for generating and/or displaying random Chuck Norris 
  facts. Based on data from the 'Internet Chuck Norris database' ('ICNDb').