agplot.corregp: Plotting an Association Graph for Correspondence Regression

In corregp: Functions and Methods for Correspondence Regression

Description

Function to make an association graph of the (significant) coordinate scores in correspondence regression.

Usage

## S3 method for class 'corregp'
agplot(x, axes = NULL, ysub = NULL, xsub = NULL,
  sort = NULL, na.rm = FALSE, col = "black", cex = par("cex"),
  font = par("font"), family = par("family"), lwd = par("lwd"),
  lty = par("lty"), ycol = col, xcol = col, ncol = c("white",
  "lightgray"), nwid = lwd, lcol = col, lwid = lwd, pcol = lcol,
  ppos = NULL, ptyp = "simple", zoom = 1, hshft = 0, vshft = 0,
  main = NULL, cl = 0.95, nq = TRUE, digits = 2, ...)

## S3 method for class 'corregp'
plotag(x, axes = NULL, ysub = NULL, xsub = NULL,
  sort = NULL, na.rm = FALSE, col = "black", cex = par("cex"),
  font = par("font"), family = par("family"), lwd = par("lwd"),
  lty = par("lty"), ycol = col, xcol = col, ncol = c("white",
  "lightgray"), nwid = lwd, lcol = col, lwid = lwd, pcol = lcol,
  ppos = NULL, ptyp = "simple", zoom = 1, hshft = 0, vshft = 0,
  main = NULL, cl = 0.95, nq = TRUE, digits = 2, ...)

agplot(x, ...)

plotag(x, ...)

Arguments

x	The output of a call to corregp (i.e. an object of class "corregp").
axes	The axes for which to plot the association graph: a vector of indices. Defaults to all the axes.
ysub	Vector of indices to select a subset of the Y levels.
xsub	Vector of indices to select a subset of the X levels. Can also be "all" or "both" (or abbreviations).
sort	Vector of axes for which to sort the coordinate scores. The default (NULL) plots all levels in the order in which they appear in the correspondence regression x.
na.rm	Logical specifying whether to omit NA coordinates from the plot. Defaults to FALSE.
col	Color of the association graph: either numeric or see colors.
cex	Character expansion factor: a number to specify the size of the text labels.
font	Font of the text labels (levels): 1 for plain, 2 for bold, 3 for italic, and 4 for bold italic. Defaults to 1.
family	Font family of the text labels (levels): can be "serif", "sans", "mono" or one of the Hershey fonts.
lwd	Line width of the association graph: a number to specify the line width.
lty	Line type of the association graph (i.e. linking edges): 0 or "blank", 1 or "solid", 2 or "dashed", 3 or "dotted", 4 or "dotdash", 5 or "longdash", 6 or "twodash". Defaults to 1.
ycol	Color of the levels in Y: either numeric or see colors.
xcol	Color of the levels in X: either numeric or see colors.
ncol	Fill color of the nodes: either numeric or see colors. Defaults to c("white","lightgray"): the first value is for the nodes of the axes and the second value is for the nodes of the X and Y levels.
nwid	Line width of the nodes: a number to specify the line width. If a vector of two values is specified, then the first width is for the nodes of the axes and the second width is for the nodes of the X and Y levels.
lcol	Color of the links (edges): either numeric or see colors. If a vector of two values is specified, then the first color is for the scores > 0 and the second color is for the scores < 0.
lwid	Line width of the links (edges): a number to specify the line width. If a vector of two values is specified, then the first width is for the scores > 0 and the second width is for the scores < 0.
pcol	Color of the pointer (arrow head): either numeric or see colors. If a vector of two values is specified, then the first color is for the scores > 0 and the second color is for the scores < 0.
ppos	Relative position of the pointer (arrow head): a vector of values between 0 and 1 for each axis.
ptyp	Type of of the pointer (arrow head): can be "simple", "curved", "triangle", "circle", "ellipse" or "T". Defaults to "simple".
zoom	Zoom factor of the association graph. Defaults to 1.
hshft	Horizontal shift of the association graph. Defaults to 0.
vshft	Vertical shift of the association graph. Defaults to 0.
main	The main title of the association graph.
cl	The confidence level for the confidence intervals. Defaults to 0.95.
nq	Logical specifying whether to use a normal quantile (i.e. apply qnorm) in the computation of the confidence interval. Defaults to TRUE. If FALSE, then the confidence interval is computed directly with the quantile function.
digits	Integer specifying the number of decimals for the scores as labels of the links (edges). Defauls to 2.
...	Further arguments passed to or from other methods.

Details

Association graphs (of a corregp output) in the corregp package make use of various functionalities of the package diagram.

Value

A plot window containing the association graph.

See Also

corregp, cint.corregp, pcplot.corregp, plot3d.corregp.

Examples

data(HairEye)
haireye.crg <- corregp(Eye ~ Hair * Sex, data = HairEye, b = 3000)
agplot(haireye.crg, axes = 1:2, xsub = c("Hair", "Sex"))
plotag(haireye.crg, axes = 1:2, xsub = c("Hair", "Sex"))

corregp documentation built on May 1, 2019, 10:08 p.m.