plot.princmp: plot.princmp

In harrelfe/Hmisc: Harrell Miscellaneous

plot.princmp

Description

Plot Method for princmp

Usage

## S3 method for class 'princmp'
plot(
  x,
  which = c("scree", "loadings"),
  k = x$k,
  offset = 0.8,
  col = 1,
  adj = 0,
  ylim = NULL,
  add = FALSE,
  abbrev = 25,
  nrow = NULL,
  ...
)

Arguments

x	results of 'princmp'
which	'‘scree'’ or '‘loadings’'
k	number of components to show, default is 'k' specified to 'princmp'
offset	controls positioning of text labels for cumulative fraction of variance explained
col	color of plotted text in scree plot
adj	angle for plotting text in scree plot
ylim	y-axis scree plotting limits, a 2-vector
add	set to 'TRUE' to add a line to an existing scree plot without drawing axes
abbrev	an integer specifying the variable name length above which names are passed through [abbreviate(..., minlength=abbrev)]
nrow	number of rows to use in plotting loadings. Defaults to the 'ggplot2' 'facet_wrap' default.
...	unused

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.

Value

‘ggplot2' object if 'which=’loadings''

Author(s)

Frank Harrell

harrelfe/Hmisc documentation built on Nov. 21, 2024, 3:47 p.m.