Interactive Leaflet Map of Spatial CV Folds

Creates an interactive leaflet map showing train/test point assignments across CV folds. Requires geographic coordinates (lat/lon).

Usage

borg_leaflet(object, data, coords, fold = 1)

Arguments

object

A borg_result or borg_cv object with spatial folds.

data

Data frame with coordinate columns. Required.

coords

Character vector of length 2. Coordinate column names (longitude first, latitude second).

fold

Integer or "all". Which fold to display. Default: 1. Use "all" for a layer-group selector across all folds.

Value

A leaflet htmlwidget.

Details

Requires the leaflet package. Coordinates must be in WGS84 (longitude/latitude). Points are color-coded: blue = train, red = test. Click points for popups with index and fold assignment.

Examples

# \donttest{
if (requireNamespace("leaflet", quietly = TRUE)) {
  set.seed(42)
  d <- data.frame(
    lon = runif(100, 10, 20),
    lat = runif(100, 45, 55),
    z = rnorm(100)
  )
  result <- borg(d, coords = c("lon", "lat"), target = "z")
  borg_leaflet(result, data = d, coords = c("lon", "lat"))
}
# }