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From: eugene@eos.arc.nasa.gov (Eugene Miya)
Newsgroups: comp.graphics.visualization
Subject: Re: Chernoff's Faces
Message-ID: <7781@eos.arc.nasa.gov>
Date: 9 Jan 91 21:11:23 GMT
References: <1894@umriscc.isc.umr.edu> <1991Jan9.080839.20752@chx400.switch.ch>
Reply-To: eugene@eos.UUCP (Eugene Miya)
Organization: NASA Ames Research Center, Calif.
Lines: 51

As was pointed out to me, Rick Becker's S stat package has them.
Here's the help command on it.  See the book for the graphic
examples.  I recommend the paper reference.

--e.n. miya, NASA Ames Research Center, eugene@eos.arc.nasa.gov
  {uunet,mailrus,most gateways}!ames!eugene
  AMERICA: CHANGE IT OR LOSE IT.
> help("faces")

faces: Plot Symbolic Faces

faces(x, which, labels, head, max, nrow, ncol, fill, scale, byrow)

ARGUMENTS:
x:     matrix of data values.
which: the columns of `x' to be used as the first, second, etc. parameter in the

       symbolic face. Default `1:min(15,ncol(x))'. See NOTE below for meaning of

       parameters.
labels:optional character vector of labels for the faces (i.e., for the rows of
       `x').
head:  optional character vector to use as the heading for the plot.
max:   a suggested value for the number of rows and columns to go on each page.
       By default, all the faces will be fitted onto one page.
nrow:
ncol:  optionally, may be given to specify exactly the number of rows and
       columns for the array of plots on each page.
fill:  if TRUE (the default), all unused parameters of the face will be set to
       their nominal (midpoint) value. If FALSE, all features corresponding to
       unused parameters will not be plotted.
scale: if TRUE (the default), the columns of `x' will be independently scaled to

       (0,1). If FALSE no scaling will be done. The data values should then be
       scaled to the same overall range by some other means; e.g., by scaling
       the whole of `x' to the range (0,1).
byrow: if TRUE, plots produced in row-wise order; if FALSE (the default) plots
       are produced in column-wise order.

NOTE:  the feature parameters are: 1-area of face; 2-shape of face; 3-length of
       nose; 4-loc. of mouth; 5-curve of smile; 6-width of mouth;
       7,8,9,10,11-loc., separation, angle, shape and width of eyes; 12-loc. of
       pupil; 13,14,15-loc., angle and width of eyebrow.

REFERENCE
H. Chernoff, "The use of Faces to Represent Points in k-Dimensional Space
Graphically", Journal of the American Statistical Association, Vol. 68, pp
361-368, 1973.

EXAMPLES:
        faces(chernoff2,head="Chernoff's Second Example")