Autoplot Method for borg_cv Objects — autoplot.borg

Visualizes cross-validation fold structure.

Usage

# S3 method for class 'borg_cv'
autoplot(
  object,
  type = c("folds", "spatial", "sizes"),
  data = NULL,
  coords = NULL,
  raster = NULL,
  ...
)

Arguments

object: A borg_cv object from borg_cv().
type: Character. Plot type: "folds" (default), "spatial", or "sizes".
data: Optional data frame (or sf/SpatVector) for spatial plots. Required for type = "spatial".
coords: Character vector of coordinate column names. Required for type = "spatial" when data is a plain data.frame.
raster: Optional terra::SpatRaster. When provided with type = "spatial", the first layer is rendered as a background map behind the fold points. Requires the tidyterra package.
...: Additional arguments (currently unused).

Value

A ggplot object.

Details

Requires the ggplot2 package.

Examples

# \donttest{
if (requireNamespace("ggplot2", quietly = TRUE)) {
  set.seed(42)
  d <- data.frame(x = runif(100), y = runif(100), z = rnorm(100))
  cv <- borg_cv(d, coords = c("x", "y"), target = "z")
  ggplot2::autoplot(cv, type = "sizes")
  ggplot2::autoplot(cv, type = "spatial", data = d, coords = c("x", "y"))
}
# }