Visualize Contributions and cos2

Plots contributions histogram and \(cos^2\) scatterplot.

Usage

plot_contributions(object, ...)

plot_cos2(object, ...)

# S4 method for MultivariateAnalysis
plot_contributions(
  object,
  margin = 2,
  axes = 1,
  sort = TRUE,
  decreasing = TRUE,
  limit = 10,
  fill = "grey30",
  border = "grey10"
)

# S4 method for MultivariateAnalysis
plot_cos2(
  object,
  margin = 2,
  axes = c(1, 2),
  active = TRUE,
  sup = TRUE,
  sort = TRUE,
  decreasing = TRUE,
  limit = 10,
  fill = "grey30",
  border = "grey10"
)

Arguments

object

A CA or PCA object.

...

Currently not used.

margin

A length-one numeric vector giving the subscript which the data will be returned: 1 indicates individuals/rows (the default), 2 indicates variables/columns.

axes

A length-one numeric vector giving the dimensions to be plotted.

sort

A logical scalar: should the data be sorted?

decreasing

A logical scalar: should the sort order be decreasing? Only used if sort is TRUE.

limit

An integer specifying the number of top elements to be displayed.

fill, border

A character string specifying the bars infilling and border colors.

active

A logical scalar: should the active observations be plotted?

sup

A logical scalar: should the supplementary observations be plotted?

See also

ggplot2::ggplot()

Other plot: plot_coordinates, plot_eigenvalues

Author

N. Frerebeau

Examples

## Load data
data("zuni", package = "folio")

## Compute correspondence analysis
X <- ca(zuni)

## Plot observations
plot(X)


## Screeplot
plot_variance(X)