.BG
.VE $Header: /usr3/s/current/s/.help/RCS/faces,v 1.2 83/12/30 19:28:17 rab Exp $
.FN faces
.TL
faces: Plot Symbolic Faces
.CS
faces(x, which, labels, head, max, nrow, ncol, fill, scale, byrow)
.PP
.AG x
matrix of data values.
.NA
.AG 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.
.AG labels
optional character vector of labels for the faces (i.e., for
the rows of `x').
.AG head
optional character vector to use as the heading for the
plot.
.AG 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.
.AG nrow
.AG ncol
optionally, may be given to specify exactly the number of
rows and columns for the array of plots on each page.
.AG 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.
.AG 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).
.AG byrow
if TRUE, plots produced in row-wise order; if FALSE (the
default) plots are produced in column-wise order.
.PP
.AG 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.
.SH REFERENCE
H. Chernoff,
"The use of Faces to Represent Points in k-Dimensional Space Graphically",
.ul
Journal of the American Statistical Association,
Vol. 68, pp 361-368, 1973.
.EX
faces(chernoff2,head="Chernoff's Second Example")
.PI
.KW plot*
.KW hplot*
.KW multivariate
.WR
