pcplot.corregp: Parallel Coordinate Plotting for Correspondence Regression

In corregp: Functions and Methods for Correspondence Regression

Description

Method to produce a parallel coordinate plot of the output of a correspondence regression.

Usage

## S3 method for class 'corregp'
pcplot(x, parm = "x", axes, add_ci = FALSE, cl = 0.95,
  nq = TRUE, col = "darkgrey", cex = par("cex"), font = par("font"),
  family = par("family"), lwd = par("lwd"), lty = par("lty"),
  lcol = col, psym = NULL, pcol = col, pcex = cex, ecol = "red",
  ewid = 1, etyp = 2, acol = "black", awid = 1, atyp = 1,
  acex = cex, afnt = font, adir = 1, add_scale = FALSE, main = NULL,
  sub = NULL, ...)

pcplot(x, ...)

Arguments

x	The output of a call to corregp (i.e. an object of class "corregp").
parm	The parameter for which to plot the coordinates. Can be either "y", "x", or any vector of term names in X, level names in X or level names in Y. Defaults to "x".
axes	The axes to plot.
add_ci	Logical specifying whether to include the confidence intervals. Defaults to FALSE.
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 intervals. Defaults to TRUE. If FALSE, then the confidence intervals are computed directly with the quantile function.
col	Color of the text labels: 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: 1 for plain, 2 for bold, 3 for italic, and 4 for bold italic. Defaults to 1.
family	Font family of the text labels: can be "serif", "sans", "mono" or one of the Hershey fonts.
lwd	Width of the connecting lines: a number to specify the line width.
lty	Line type of the connecting lines: 0 or "blank", 1 or "solid", 2 or "dashed", 3 or "dotted", 4 or "dotdash", 5 or "longdash", 6 or "twodash". Defaults to 1.
lcol	Color of the connecting lines: either numeric or see colors.
psym	The symbol (or "plotting character") for the values of the coordinates on the axes.
pcol	Color of the symbol for the values on the axes: either numeric or see colors.
pcex	Character expansion factor of the symbol for the values on the axes.
ecol	Color of the error lines (connecting the confidence intervals on each axis): either numeric or see colors.
ewid	Width of the error lines (connecting the confidence intervals on each axis): a number to specify the line width.
etyp	Line type of the error lines (connecting the confidence intervals on each axis): 0 or "blank", 1 or "solid", 2 or "dashed", 3 or "dotted", 4 or "dotdash", 5 or "longdash", 6 or "twodash". Defaults to 2.
acol	Color of the parallel axes: either numeric or see colors.
awid	Width of the parallel axes: a number to specify the line width.
atyp	Line type of the parallel axes: 0 or "blank", 1 or "solid", 2 or "dashed", 3 or "dotted", 4 or "dotdash", 5 or "longdash", 6 or "twodash". Defaults to 1.
acex	Character expansion factor for the labels of the parallel axes.
afnt	Font for the labels of the parallel axes: 1 for plain, 2 for bold, 3 for italic, and 4 for bold italic.
adir	Reading direction of the labels on the parallel axes: either a numeric value between 0 and 3 (see the las argument in the graphical parameters par) or a character value matching either "horizontal" or "vertical". Defaults to 1 (horizontal).
add_scale	Logical specifying whether to add a scale for the parallel axes (which are normalised).
main	The main title of the plot.
sub	The subtitle of the plot.
...	Further arguments passed to or from other methods.

Details

Although adding lines for confidence intervals is possible, it is not recommended, as it typically leads to an unreadable plot.

Value

A parallel coordinate plot containing the output of a correspondence regression.

See Also

ciplot.corregp, plot.corregp, plot3d.corregp, agplot.corregp.

Examples

data(HairEye)
haireye.crg <- corregp(Eye ~ Hair * Sex, data = HairEye, b = 3000)
pcplot(haireye.crg, parm = "y", axes = 1:3)
pcplot(haireye.crg, parm = c("Hair", "Sex"), axes = 1:3)

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