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
	symbolmath	&	"Symbolic Math", as polynomials, fractions
	

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

				 [actually, `survival4' rather than `survival',
				  but do we want 'survival5' later ?]

	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		&	Classification  ['class' library]
	spatial		&	Spatial Statistics ['spatial' library]
	neural		&	Neural Networks ['nnet'  library]