plot.mixdata.rd

这个包里面含有利用极大似然估计方法来拟合成组数据和条件数据的有限混合分布模型的函数

\name{plot.mixdata}
\alias{plot.mixdata}
\title{Mixdata Object Plotting}
\description{
 A function for plotting of Mixdata objects. It is called
 via the generic function \code{plot}.
}
\usage{
\method{plot}{mixdata}(x, mixpar = NULL, dist = "norm", root = FALSE, ytop = NULL, 
     clwd = 1, main, sub, xlab, ylab, bty, \dots)
}
\arguments{
\item{x}{an object of class \code{"mixdata"}, usually, the
 results returned by the function \code{\link{mixgroup}}.}
\item{mixpar}{\code{NULL} or a data frame containing the values for
 parameters of component distributions, which are, in order, the 
 proportions, means, and standard deviations.}
\item{dist}{the distribution of components, it can be
 \code{"norm"}, \code{"lnorm"}, \code{"gamma"}, \code{"weibull"},
 \code{"binom"}, \code{"nbinom"} and \code{"pois"}.}
\item{root}{if \code{TRUE}, a hanging rootogram will be displayed.}
\item{ytop}{a scalar which determines the top of the y-axis.}
\item{clwd}{a positive number denoting line width, defaulting to \code{1}.}
\item{main}{an overall title for the plot.}
\item{sub}{a subtitle for the plot.}
\item{xlab}{a title for the x-axis.}
\item{ylab}{a title for the y-axis.}
\item{bty}{A character string which determined the type of box which is
           drawn about plots.  If \code{bty} is one of \code{"o"},
           \code{"l"}, \code{"7"}, \code{"c"}, \code{"u"}, or \code{"]"}
           the resulting box resembles the corresponding upper case letter. 
           A value of \code{"n"} suppresses the box.}
\item{\dots}{additional arguments to the function \code{\link{plot.default}}.}
}
\details{
 If the argument \code{mixpar} is \code{NULL}, then only the 
 histogram of the data will be displayed; if \code{mixpar} gives 
 the values of parameters, the component distributions and the
 mixture distribution are computed from the parameter values 
 and superimposed on the histogram.
}
\seealso{
\code{\link{plot.mix}} for plotting Mix objects, \code{\link{plot.default}} 
for additional arguments.
}
\examples{
data(cassie)
as.mixdata(cassie) # if the result isn't `NULL', then cassie is mixed data
plot.mixdata(cassie)
data(pikeraw)
data(pikepar)
pikemd <- mixgroup(pikeraw, breaks = c(0, seq(19.75, 65.75, 2), 80))
plot(pikemd)
plot(pikemd, pikepar, "lnorm")
fit <- mix(pikemd, pikepar, "lnorm", constr = mixconstr(consigma = "CCV"), emsteps = 3)
plot(fit)
plot(pikemd, pikepar, "lnorm", root = TRUE)
plot(fit, root = TRUE)
}
\keyword{dplot}