plot.princmp {Hmisc}

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