The R Project SVN R

Rev

Rev 61160 | Rev 70615 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
42333 ripley 1 
% File src/library/stats/man/plot.ppr.Rd
2 
% Part of the R package, http://www.R-project.org
59039 ripley 3 
% Copyright 1995-2007 R Core Team
42333 ripley 4 
% Distributed under GPL 2 or later
5 
 
27464 ripley 6 
% file modreg/man/plot.ppr.Rd
7 
% copyright (C) 1995-8 B. D. Ripley
8 
%
9 
\name{plot.ppr}
56186 murdoch 10 
\alias{plot.ppr}
27464 ripley 11 
\title{
12 
Plot Ridge Functions for Projection Pursuit Regression Fit
13 
}
14 
\description{
15 
Plot ridge functions for projection pursuit regression fit.
16 
}
17 
\usage{
18 
\method{plot}{ppr}(x, ask, type = "o", \dots)
19 
}
20 
\arguments{
21 
  \item{x}{
22 
    A fit of class \code{"ppr"} as produced by a call to \code{ppr}.
23 
  }
24 
  \item{ask}{
25 
    the graphics parameter \code{ask}: see \code{par} for details.
26 
    If set to \code{TRUE} will ask between the plot of each cross-section.
27 
  }
28 
  \item{type}{
29 
    the type of line to draw
30 
  }
31 
  \item{\dots}{
32 
    further graphical parameters
33 
  }
34 
}
35 
\value{
36 
  None
37 
}
38 
\section{Side Effects}{
39 
  A series of plots are drawn on the current graphical device, one for
40 
  each term in the fit.
41 
}
42 
\seealso{
43 
  \code{\link{ppr}}, \code{\link{par}}
44 
}
45 
\examples{
41508 ripley 46 
require(graphics)
47 
 
37838 ripley 48 
with(rock, {
27464 ripley 49 
area1 <- area/10000; peri1 <- peri/10000
61168 ripley 50 
par(mfrow = c(3,2)) # maybe: , pty = "s")
27464 ripley 51 
rock.ppr <- ppr(log(perm) ~ area1 + peri1 + shape,
52 
                data = rock, nterms = 2, max.terms = 5)
61160 ripley 53 
plot(rock.ppr, main = "ppr(log(perm)~ ., nterms=2, max.terms=5)")
54 
plot(update(rock.ppr, bass = 5), main = "update(..., bass = 5)")
55 
plot(update(rock.ppr, sm.method = "gcv", gcvpen = 2),
27464 ripley 56 
     main = "update(..., sm.method=\"gcv\", gcvpen=2)")
37838 ripley 57 
})
27464 ripley 58 
}
59 
\keyword{hplot}