https://github.com/cran/cobs
Tip revision: 9c95d5b281ceb105735d6b37e85c364ee44a81e1 authored by Martin Maechler on 26 January 2008, 00:00:00 UTC
version 1.1-5
version 1.1-5
Tip revision: 9c95d5b
plot.cobs.Rd
\name{plot.cobs}
\alias{plot.cobs}
\title{Plot Method for COBS Objects}
\description{
The \code{\link{plot}} method for \code{\link{cobs}} objects.
If there was \code{lambda} selection, it provides two plots by default.
}
\usage{
\method{plot}{cobs}(x, which = if(x$select.lambda) 1:2 else 2,
show.k = TRUE,
col = par("col"), l.col = c("red","pink"), k.col = gray(c(0.6, 0.8)),
lwd = 2, cex = 0.4,
xlab = deparse(x$call[[2]]),
ylab = deparse(x$call[[3]]),
main = paste(deparse(x$call, width.cut = 100), collapse="\n"),
subtit= c("choosing lambda", "data & spline curve") , \dots)
}
\arguments{
\item{x}{object of class \code{cobs}.}
\item{which}{integer vector specifying \emph{which} plots should be
drawn;} %% 1: SIC ~ lambda 2: data + smooth curve
\item{show.k}{logical indicating if the \dQuote{effective
dimensionality} \eqn{k} should also be shown. Only applicable when
\code{which} contains 1.}
\item{col, l.col, k.col}{colors for plotting; \code{k.col} only
applies when \code{show.k} is true in the first plot (\code{which
== 1}) where \code{l.col[2]} and \code{k.col[2]} are only used as well,
for denoting \dQuote{doubtful} points; \code{col} is only used for
the 2nd plot (\code{which == 2}).}
\item{lwd, cex}{line width and point size for the 2nd plot
(i.e. \code{which == 2}).}
\item{xlab, ylab, main}{axis annotation; see also \code{\link{axis}}.}
\item{subtit}{a vector of length 2, specifying a sub title for each
plot (according to \code{which}).}
\item{\dots}{further arguments passed and to internal
\code{\link{plot}} methods.}
}
\details{
\code{plot(.)} produces two side-by-side plots in case there was a
search for the optimal lambda(\code{which = 1:2}), and only the
(second) data plus spline curve plot otherwise (\code{which = 2}).
%% FIXME
}
\author{Martin Maechler}
\seealso{
There are several other methods for COBS objects, see, e.g.
\code{\link{summary.cobs}} or \code{\link{predict.cobs}}.
\code{\link{cobs}} for examples.
}
\examples{
example(cobs)% ./cobs.Rd
plot(Sbs)
plot(fitted(Sbs), resid(Sbs),
main = "Tukey-Anscombe plot for cobs()",
sub = deparse(Sbs$call))
}
\keyword{print}