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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/princmp.r
\name{plot.princmp}
\alias{plot.princmp}
\title{plot.princmp}
\usage{
\method{plot}{princmp}(
x,
which = c("scree", "loadings"),
k = x$k,
offset = 0.8,
col = 1,
adj = 0,
ylim = NULL,
add = FALSE,
abbrev = 25,
nrow = NULL,
...
)
}
\arguments{
\item{x}{results of `princmp`}
\item{which}{'`scree`' or '`loadings'`}
\item{k}{number of components to show, default is `k` specified to `princmp`}
\item{offset}{controls positioning of text labels for cumulative fraction of variance explained}
\item{col}{color of plotted text in scree plot}
\item{adj}{angle for plotting text in scree plot}
\item{ylim}{y-axis scree plotting limits, a 2-vector}
\item{add}{set to `TRUE` to add a line to an existing scree plot without drawing axes}
\item{abbrev}{an integer specifying the variable name length above which names are passed through [abbreviate(..., minlength=abbrev)]}
\item{nrow}{number of rows to use in plotting loadings. Defaults to the `ggplot2` `facet_wrap` default.}
\item{...}{unused}
}
\value{
`ggplot2` object if `which='loadings'`
}
\description{
Plot Method for princmp
}
\details{
Uses base graphics to by default plot the scree plot from a [princmp()] result, showing cumultive proportion of variance explained. Alternatively the standardized PC loadings are shown in a `ggplot2` bar chart.
}
\author{
Frank Harrell
}
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