Help search keywords

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Keyword	Concept	Frequency	Packages
internal	Internal Objects (not part of API)	1400	129
datasets	Datasets available by data()	730	90
methods	Methods and Generic Functions	638	28
models	Statistical Models	566	21
spatial	Spatial Statistics	550	8
programming	Programming	487	24
utilities	Utilities	345	35
classes	Data Types (not OO)	320	26
regression	Regression	311	15
manip	Data Manipulation	301	43
dplot	Computations Related to Plotting	244	19
IO	Input/output	217	20
hplot	High-Level Plots	205	30
graphs	Graphs (not graphics), i.e nodes&edges, e.g. dendrograms	188	2
file	Input/Output Files	150	11
cluster	Clustering	132	5
smooth	Curve (and Surface) Smoothing	124	8
array	Matrices and Arrays	114	15
data	Environments, Scoping, Packages	111	11
survival	Survival Analysis	108	4
ts	Time Series	92	8
documentation	Documentation	91	9
interface	Interfaces to Other Languages	80	15
multivariate	Multivariate Techniques	76	10
survey	Complex survey samples	73	1
htest	Statistical Inference	72	11
univar	simple univariate statistics	69	14
chron	Dates and Times	65	5
algebra	Linear Algebra	64	7
distribution	Probability Distributions and Random Numbers	57	13
print	Printing	56	14
aplot	Add to Existing Plot / internal plot	51	9
misc	Miscellaneous	49	17
logic	Logical Operators	47	8
math	Mathematical Calculus etc	44	11
character	Character Data ("String") Operations	44	7
robust	Robust/Resistant Techniques	44	4
package	Package Summaries	43	38
color	Color, Palettes etc	43	7
device	Graphical Devices	40	7
error	Error Handling	38	6
environment	Session Environment	34	6
iteration	Looping and Iteration	33	6
arith	Basic Arithmetic and Sorting	32	9
category	Categorical Data	31	9
connection	Input/Output Connections	29	4
nonparametric	Nonparametric Statistics	29	3
classif	Classification	26	4
attribute	Data Attributes	25	6
optimize	Optimization	22	6
nonlinear	Non-linear Regression	22	5
tree	Regression and Classification Trees	22	2
iplot	Interacting with Plots	13	5
sysdata	Basic System Variables	12	5
debugging	Debugging Tools	10	6
list	Lists	9	3
neural	Neural Networks	9	2
NA	Missing Values	8	2
database	Interfaces to databases	6	1
datagen	Functions for generating data sets	3	3
design	Designed Experiments	3	1
loess	Loess Objects	2	1
complex	Complex Numbers	1	1