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NAME
Splus - Interactive Environment for Data Analysis and Graphics
SYNOPSIS
Splus [-e]
DESCRIPTION
S-PLUS is a language for data analysis, graphics etc. Users type
expressions to S-PLUS; S-PLUS evaluates the expressions. Results may
be assigned to a permanent database or printed on the terminal. All
expressions operate on self-describing data structures.
Expressions may use standard arithmetic, logical and boolean
operators, subsetting ([]) with arithmetic or logical expressions,
component selection($), and various special operators. There are a
large variety of functions for statistical, numerical, and graphical
techniques, including
+ Two- and three-dimensional plotting
+ Interactive graphics and data visualization
+ Basic statistics
+ Regression and ANOVA
+ Multivariate statistics and graphics
+ Time series analysis
+ Survival analysis
Graphics may be done on any of a number of interactive terminals,
including the X11 and SunView window systems, or on a printing
terminal. X11 support includes graphics devices for OPEN LOOK and
Motif graphical user interfaces. Graphics can be printed on PostScript
or LaserJet printers, or HP-GL plotters.
The language can be extended easily with user-written functions, and
dynamically or statically loaded subroutines in C and Fortran.
On-line documentation is available through the help function. An
X11-based help system is available through the help.start function.
OPTIONS
-e Use the S-PLUS command line editor, which allows you to recall
and edit previously issued commands.
EXAMPLES
help.start() # starts X11 help window showing all S-PLUS functions
x <- rnorm(100) # generate 100 pseudorandom numbers from
# normal distribution, and save under the name x
lsfit(x,y) # regression of y vector on x matrix
help("brush") # print out detailed documentation for brush function
FILES
.Data
Directory for working database
SEE ALSO
S-PLUS User's Manual. (Two volumes.) Available from StatSci, 1700
Westlake Ave. N., Suite 500, Seattle, WA 98109.
S-PLUS Reference Manual. Also available from StatSci.
Richard A. Becker, John M. Chambers, and Allan R. Wilks, The New S
Language: A Programming Environment for Data Analysis and Graphics.
Wadsworth, 1988.
John M. Chambers and Trevor Hastie, eds. Statistical Models in S.
Wadsworth, 1992.