plotpersp_control: Control Parameters for plotpersp.cgam

In cgam: Constrained Generalized Additive Model

Control Parameters for plotpersp.cgam

Description

Constructs a list of control parameters to customize the appearance of perspective plots created by plotpersp.cgam.

Usage

plotpersp_control(surface = "mu", x1nm = NULL, x2nm = NULL, categ = NULL,
  col = NULL, random = FALSE, ngrid = 12, xlim = NULL, ylim = NULL, zlim = NULL,
  xlab = NULL, ylab = NULL, zlab = NULL, th = NULL, ltheta = NULL, 
  main = NULL, sub = NULL, ticktype = "simple")

Arguments

surface	Character string indicating the surface type to plot. Options are "mu" for fitted means or "eta" for systematic component.
x1nm	Optional character strings specifying names of the predictors for the x axis.
x2nm	Optional character strings specifying names of the predictors for the y axis.
categ	Optional character string naming a categorical covariate in the cgam fit to stratify surfaces. Default is NULL.
col	Colors used for the surface(s). If NULL, defaults are applied automatically depending on the number of surfaces.
random	Logical; if TRUE, colors are randomized for multiple surfaces. Default is FALSE.
ngrid	Integer; number of grid points along each axis. Default is 12.
xlim, ylim, zlim	Optional numeric vectors of length 2 specifying limits for the x, y, and z axes.
xlab, ylab, zlab	Axis labels for x, y, and z axes. Default is based on the predictor names and surface type.
th	Angle defining the azimuthal direction for viewing the plot (theta).
ltheta	Angle defining the direction of lighting (light theta).
main	Main title of the plot.
sub	Subtitle of the plot.
ticktype	Character string indicating type of tick marks: "simple" (default) or "detailed".

Value

A named list of control settings for use with plotpersp.

Author(s)

Mary C. Meyer and Xiyue Liao

See Also

plotpersp, persp

Examples

ctrl <- plotpersp_control(col = "topo", ngrid = 20, th = 45)
# Then used inside plotpersp:
# plotpersp(fit, control = ctrl)

cgam documentation built on June 8, 2025, 1:45 p.m.