FEATURES

Arithmetical, Mathematical and Statistical capabilities:

• extended arithmetic including the ability to lexically redefine return results that usually produce NaNs
• rich array manipulation facilities including:
  • array combination and subsetting
  • iteration macros
  • mathematical functions operate elementwise on arrays
  • matrix manipulation including various decompositions
  • arrays by indirect reference and by copying
• special mathematical functions such as gamma, beta, continued fraction approximations, diffentiation (symbolic and numerical) and numerical integration, ...
• probability calculations for a wide variety of discrete and continuous distributions including mixtures.
  • pseudo-random number generation
  • quantiles
  • probabilities
  • density and distribution function calculations
  • collection of linear congruential generators.
• statistical response models
  • fitting of normal linear models,
  and generalized linear models including quasi-likelihood

Display facilities:

• extended documentation and help facilities
  • by parsing the CL documentation string documentation objects are created which can be displayed in interactive help windows
  • tools for creating topics automatically from source file organization
  • automatic latex production of help documentation
• object oriented graphics facilities including
  • building blocks for arbitrary graphics
  • collection of stock statistical graphics Histograms, boxplots, function plots, scatterplots, 3d-rotating scatterplots, scatterplot matrices, Andrews' curves, ...
  • function plotting,
  • 3d-rotating function or surface plots
    • wire-frame, hidden line, and solid polygon surface
    • any of which can be depth-cued by colour
  • arbitrary dynamic linking of graphics elements allowing brushing within and across windows
• graphical browsers
• uniform access to a mouse and colour window system including
  • automatic generation of colour postscript output for all graphics

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