Plot a qgcompmulti confidence region — plot.qgcompmulti

Draws the two-parameter confidence-region ellipsoid produced by confregion().

Usage

# S3 method for class 'qgcompmulti_region'
plot(
  x,
  xlab = NULL,
  ylab = NULL,
  main = NULL,
  col = "#2f6f9f",
  lwd = 2,
  pch = 19,
  point_col = "#1f2933",
  xlim = NULL,
  ylim = NULL,
  asp = 1,
  ...
)

Arguments

x: A qgcompmulti_region object returned by confregion().
xlab: Optional x-axis label.
ylab: Optional y-axis label.
main: Optional plot title.
col: Line color for the ellipsoid boundary.
lwd: Line width for the ellipsoid boundary.
pch: Plotting character for the point estimate.
point_col: Color for the point estimate.
xlim: Optional x-axis limits.
ylim: Optional y-axis limits.
asp: Numeric aspect ratio passed to graphics::plot(). The default 1 preserves the ellipsoid geometry on the fitting coefficient scale.
...: Additional graphical parameters passed to graphics::plot().

Value

Invisibly returns x.

Details

Direct plotting is supported only for two-parameter confidence regions. For higher-dimensional regions, inspect the returned object fields directly. Ratio-estimand regions are plotted on the log coefficient scale used for fitting and covariance estimation.