adegraphics: plotEig – R documentation

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plotEig

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 aurelie.siberchicot@univ-lyon1.fr and Stephane Dray

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

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

v1.0-15

GPL (>= 2)

Authors

Stéphane Dray <stephane.dray@univ-lyon1.fr> and Aurélie Siberchicot <aurelie.siberchicot@univ-lyon1.fr>, with contributions from Jean Thioulouse. Based on earlier work by Alice Julien-Laferrière.

Initial release

2018-12-18