panelAcomp: Pairs plot method for compositions

In compositions: Compositional Data Analysis

Pairs plot method for compositions

Description

Pairs plot function for compositions, allowing flexible representations.

Usage

 ## S3 method for class 'acomp'
pairs(x, labels, panel = vp.lrdensityplot, ...,
                         horInd = 1:ncol(x), verInd = 1:ncol(x),
                         lower.panel = panel, upper.panel = panel,
                         diag.panel = NULL, text.panel = textPanel,
                         label.pos = 0.5 + has.diag/3, line.main = 3,
                         cex.labels = NULL, font.labels = 1,
                         row1attop = TRUE, gap = 1, log = "")
 ## S3 method for class 'rcomp'
pairs(x, labels, panel = vp.diffdensityplot, ...,
                         horInd = 1:ncol(x), verInd = 1:ncol(x),
                         lower.panel = panel, upper.panel = panel,
                         diag.panel = NULL, text.panel = textPanel,
                         label.pos = 0.5 + has.diag/3, line.main = 3,
                         cex.labels = NULL, font.labels = 1,
                         row1attop = TRUE, gap = 1, log = "")
  vp.lrdensityplot(x, y, col=2,..., alpha = NULL)
  vp.diffdensityplot(x, y, col=2,..., alpha = NULL)
  vp.lrboxplot(x, y, ...)
  vp.kde2dplot(x, y, grid=TRUE, legpos="bottomright", colpalette=heat.colors,...)

Arguments

x	a dataset of a compositional class; or for the panel functions, a vector of row components
y	for the panel functions, a vector of column components
...	further graphical parameters passed (see par)
labels	the names of the parts
panel	common panel function to use for all off-diagonal plots
horInd	indices of columns of x to plot on the horizontal axis, defaults to all columns
verInd	indices of columns of x to plot on the vertical axis, defaults to all columns
lower.panel	panel function for the lower triangle of plots, defaults to the common panel
upper.panel	panel function for the uppper triangle of plots, defaults to the common panel
diag.panel	panel function for the diagonal of plots, defaults to text.panel
text.panel	panel function to write labels on the diagonal panels
label.pos	y position of labels in the text panel
line.main	if main is specified, line.main gives the line argument to mtext() which draws the title. You may want to specify oma when changing line.main
cex.labels	graphics parameters for the text panel
font.labels	graphics parameters for the text panel
row1attop	logical. Should the layout be matrix-like with row 1 at the top, or graph-like with row 1 at the bottom?
gap	distance between subplots, in margin lines
log	a character string indicating if logarithmic axes are to be used: see plot.default. Should not be used and left to the panel function to handle
col	color for density and histogram components of the panel vp.*density
alpha	alpha level for marking normality in the panels vp.*density; default to no mark
grid	should a unit-grid be added to each panel?
legpos	where should the legend be placed? to be given as x in graphics::legend
colpalette	which color palette is desired for the 2d density levels?

Details

The data is displayed in a matrix of plots, after the indications of a panel function. This is a simple implementation of pairs compositional methods, the real functionality is controlled by the panel functions.

The three panel functions included here can be used for generating either boxplots or histograms plus kernel density plots of all pairwise logratios (in acomp) or differences (in rcomp) of the components. In the cas of histograms, these can be colored or left black-and-white depending on the adjustment to normality, controlled by a shapiro.test and the alpha-level given. These panel functions serve also as examples of how to generate user defined panels.

Author(s)

Raimon Tolosana-Delgado

See Also

vp.boxplot, vp.logboxplot

Examples

data(SimulatedAmounts)
pairs(acomp(sa.lognormals))
pairs(rcomp(sa.lognormals))

compositions documentation built on June 22, 2024, 12:15 p.m.