plotEig: Plot a barchart of eigen values

In adegraphics: An S4 Lattice-Based Package for the Representation of Multivariate Data

Plot a barchart of eigen values

Description

This function represents a simplified barchart adapted to display eigen values. The bar color depends on whether the axis is displayed, kept or not.

Usage

plotEig(eigvalue, nf, xax = 1, yax = 2, col.plot = "black", col.kept = "grey", 
  col = "white", facets = NULL, plot = TRUE, storeData = FALSE, pos = -1, ...)

Arguments

eigvalue	a numeric vector of eigenvalues
nf	the number of retained factors, NULL if not provided
xax	an integer indicating which factor is plotted on the x-axis
yax	an integer indicating which factor is plotted on the y-axis
col.plot	a color value to fill the bar corresponding to the displayed factors
col.kept	a color value to fill the bar corresponding to the kept by not displayed factors
col	a color value to fill the bar corresponding to the other factors
facets	a factor splitting the rows of dfxy so that subsets of the data are represented on different sub-graphics
plot	a logical indicating if the graphics is displayed
storeData	a logical indicating if the data should be stored in the returned object. If FALSE, only the names of the data arguments are stored
pos	an integer indicating the position of the environment where the data are stored, relative to the environment where the function is called. Useful only if storeData is FALSE
...	additional graphical parameters (see adegpar and trellis.par.get)

Details

Graphical parameters for bars are available in ppolygons of adegpar. Some appropriated graphical parameters in p1d are also available.

Value

An object of class ADEg (subclass C1.barchart).
The result is displayed if plot is TRUE.

Author(s)

Alice Julien-Laferriere, Aurelie Siberchicot [e-mail] and Stephane Dray

See Also

C1.barchart ADEg.C1

Examples

  data(microsatt, package = "ade4")
  w <- ade4::dudi.coa(data.frame(t(microsatt$tab)), scann = FALSE, nf = 3)
  g1 <- s.label(w$co, plot = FALSE)
  g2 <- plotEig(w$eig, w$nf, psub = list(text = "Eigenvalues"), pbackground = list(box = TRUE), 
    plot = FALSE)
  G <- insert(g2, g1, posi = "bottomright", ratio = 0.25)

adegraphics documentation built on April 11, 2025, 5:44 p.m.