GROUPED Keywords
----------------

Graphics
       aplot		&	Add to Existing Plot / internal plot.
       dplot		&	Computations Related to Plotting
       hplot		&	High-Level Plots
       iplot		&	Interacting with Plots
       color		&	Color, Palettes etc.
       dynamic		&	Dynamic Graphics
       device		&	Graphical Devices			7

Basics
       sysdata		&	Basic System Variables		[!= S]
       datasets		&	Datasets available by data(.)	[!= S]
       data		&	Environments, Scoping, Packages [~= S]
       manip		&	Data Manipulation
       attribute	&	Data Attributes
       classes		&	Data Types (not OO)
	   & character	&	Character Data Operations
	   & complex	&	Complex Numbers
	   & category   &	Categorical Data
	   & NA		&	Missing Values			[!= S]
       list		&	Lists					11

Mathematics
       array		&	Matrices and Arrays
	      & algebra &	Linear Algebra
       arith		&	Basic Arithmetic and Sorting	[!= S]
       math		&	Mathematical Calculus etc.	[!= S]
       logic		&	Logical Operators
       optimize		&	Optimization				6

Programming, Input/Ouput, and Miscellaneous

       programming	&	Programming
	    & interface	&	Interfaces to Other Languages
       iteration	&	Looping and Iteration
       methods		&	Methods and Generic Functions
       print		&	Printing
       file		&	Input/Output--Files
       error		&	Error Handling				7

       environment	&	Session Environment
       utilities	&	Utilities
       misc		&	Miscellaneous
       documentation	&	Documentation				4

Statistics

       distribution 	&	Probability Distributions and Random Numbers
       univar		&	simple univariate statistics  [! S]
       htest		&	Statistical Inference
       models		&	Statistical Models
	   & regression	&	Regression
           & & nonlinear&	Non-linear Regression (only?)
       robust		&	Robust/Resistant Techniques
       design		&	Designed Experiments
       multivariate	&	Multivariate Techniques
       ts		&	Time Series
       survival		&	Survival Analysis		       11

       nonparametric	&	Nonparametric Statistics [w/o 'smooth']
       smooth		&	Curve (and Surface) Smoothing
       cluster		&	Clustering
       loess		&	Loess Objects
       tree		&	Regression and Classification Trees	5
								     ----
								       51

MASS (2, 1997)
--------------

add the following keywords :

	classif		&	for the 'class' library
	spatial		&	for the 'spatial' library
	neural [net[s]] &	for the 'nnet'  library
          (3 different KW versions!)


	survival4	('4' : In S-plus 3.4, we also really have
			       `survival4' rather than `survival'...)