Plot basis functions — draw.basis • gratia

Plots basis functions using ggplot2

Usage

# S3 method for basis
draw(
  object,
  legend = FALSE,
  labeller = NULL,
  ylab = NULL,
  title = NULL,
  subtitle = NULL,
  caption = NULL,
  ncol = NULL,
  nrow = NULL,
  angle = NULL,
  guides = "keep",
  contour = FALSE,
  n_contour = 10,
  contour_col = "black",
  ...
)

Arguments

object: an object, the result of a call to basis().
legend: logical; should a legend by drawn to indicate basis functions?
labeller: a labeller function with which to label facets. The default is to use ggplot2::label_both().
ylab: character or expression; the label for the y axis. If not supplied, a suitable label will be generated from object.
title: character or expression; the title for the plot. See ggplot2::labs().
subtitle: character or expression; the subtitle for the plot. See ggplot2::labs().
caption: character or expression; the plot caption. See ggplot2::labs().
ncol, nrow: numeric; the numbers of rows and columns over which to spread the plots
angle: numeric; the angle at which the x axis tick labels are to be drawn passed to the angle argument of ggplot2::guide_axis().
guides: character; one of "keep" (the default), "collect", or "auto". Passed to patchwork::plot_layout()
contour: logical; should contours be draw on the plot using ggplot2::geom_contour().
n_contour: numeric; the number of contour bins. Will result in n_contour - 1 contour lines being drawn. See ggplot2::geom_contour().
contour_col: colour specification for contour lines.
...: arguments passed to other methods. Not used by this method.

Value

A patchwork object.

Author

Gavin L. Simpson

Examples

load_mgcv()
df <- data_sim("eg1", n = 400, seed = 42)
m <- gam(y ~ s(x0) + s(x1) + s(x2) + s(x3), data = df, method = "REML")

bf <- basis(m)
draw(bf)


bf <- basis(m, "s(x2)")
draw(bf)