DESCRIPTION:
       Dynamic graphics,  including   brushing,  rotation,  grand
       tour,  projection  pursuit, slicing. Most effectively used
       when called more than once on same data, which then allows
       linked  plots.  Brushing with several glyphs and colors is
       supported.  (On monochrome displays, only  glyphs  can  be
       used.)

USAGE:
       xgobi(matrx,
       collab=NULL, rowlab=NULL,
       colors=NULL, glyphs=NULL, erase=NULL,
       lines=NULL, linecolors=NULL,
       resources=NULL, title=NULL,
       vgroups=NULL, std="mmx", dev=2.0,
       nlinkable=0, subset=NULL,
       display=NULL)

REQUIRED ARGUMENTS:
matrx:    Any numeric matrix or data.frame.

OPTIONAL ARGUMENTS:
collab:   Optional character vector of column labels; the default
       is  dimnames(matrx)[[2]].   If  no  default  exists, xgobi
       constructs its own defaults.
rowlab:   Optional character vector of row labels; the default is
       dimnames(matrx)[[1]].    If   no   default  exists,  xgobi
       constructs its own defaults.
colors:   Optional character vector, used to supply initial point
       colors  to be used; the default is that all points are the
       same color.
glyphs:   Optional integer vector, used to supply  glyphs  to  be
       used  on startup; the default is that all points are drawn
       with the same glyph.
erase:    Optional integer vector of length equal to  the  number
       of  rows  in  the  data and composed of 1s and 0s.  A 1 in
       position i specifies that point i should be  erased.   The
       default is a vector of 0s.
lines:    Optional integer matrix, n by 2, which specifies by row
       number  pairs  of points to be connected by line segments.
       The default connecting line matrix connects each point  to
       the  one  that  follows it in the data; that is, (1 2), (2
       3), (3 4), ..., (n-1, n).
linecolors:    Optional integer vector, of length n  where  n  is
       the number of lines specified by the 'lines' argument.  It
       is used to supply line colors to be used on  startup;  the
       default  is  for all the lines to be drawn in the standard
       foreground color.
resources:     Optional character vector created by  clicking  on
       the  "Save  Resources"  button in XGobi (if this XGobi was
       initiated during an S session).
title:    Optional character  string  which  defines  the  -title
       median and dev median absolute deviations are shown inside
       the plotting window.
dev:   Optional numeric scalar; the number of standard deviations
       (if  "msd"  is  chosen)  or median absolute deviations (if
       "mmd" is chosen) that will be plotted inside the  plotting
       window.  Default is 2.
nlinkable:     Optional integer scalar, the number of rows to  be
       used  in  linking  of  brushing  and  identification;  the
       default is for all rows to be used.  This feature  can  be
       used  to  link  ordinary scatterplots with plots that have
       some decorations  requiring  additional  points,  such  as
       clustering trees.
subset:   Optional integer scalar,  the  number  of  rows  to  be
       included  in  the initial display.  That is, all data will
       be read in, but an initial random sample will be drawn for
       display.  Use the Subset panel on the Tools Menu to select
       a new subset during the session.
display:    Optional character string, identifying the monitor on
       which  to  display  the  xgobi  window.   The  default  is
       "machine:0.0" where machine is  the  name  of  the  user's
       workstation.  See documentation for xgobi or for X.

VALUE:
       The UNIX status upon completion, i.e. 0 if ok.

SIDE EFFECTS:
       The xgobi S function executes a call to the C  program  of
       the same name, an interactive statistical graphics program
       which runs under the X Window System, and returns  control
       of the S shell to the user.

       XGobi  can  be  used  to  create   vectors   of   brushing
       information    and    rotation   coefficients;   see   the
       documentation for XGobi for details.

REFERENCE:
        http://www.research.att.com/~andreas/xgobi/ 
        http://www.public.iastate.edu/~dicook/ 

CONTACT:
       D. F. Swayne dfs@research.att.com

EXAMPLES:
       xgobi(x)
       xgobi(cbind(x,y,z), name="laser")
       xgobi(x, collabels, rowlabels, subset=5000)


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