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

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 ("String") Operations
	    & complex	&	Complex Numbers
	    & category	&	Categorical Data
	    & NA	&	Missing Values			[!= S]
	list		&	Lists
	chron		&	Dates and Times

Mathematics
	array		&	Matrices and Arrays
	      & algebra &	Linear Algebra
	arith		&	Basic Arithmetic and Sorting	[!= S]
	math		&	Mathematical Calculus etc.	[!= S]
	logic		&	Logical Operators
	optimize	&	Optimization
	symbolmath	&	"Symbolic Math", as polynomials, fractions
	graphs		&	Graphs, (not graphics), e.g. dendrograms

Programming, Input/Ouput, and Miscellaneous

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