Plot Spatial Cross-Validation Folds

Creates a visual representation of spatial cross-validation folds, showing the spatial distribution of training and test observations.

Usage

plot_spatial_folds(folds, data, x = NULL, y = NULL, fold = 1, main = NULL, ...)

Arguments

folds

A spatial_folds object

data

Spatial observations (data.frame or sf object)

x

Name of the x coordinate column (required for data.frame, ignored for sf)

y

Name of the y coordinate column (required for data.frame, ignored for sf)

fold

Fold number to plot (default: 1, or "all" for all folds)

main

Plot title (default: NULL, auto-generated)

...

Additional graphical parameters passed to plot()

Value

Invisibly returns the fold object

Details

Creates a scatter plot showing training and test observations with different colors. For spatial block CV, also shows block boundaries when available.

See also

Other visualization functions: plot_spatial_residuals()

Examples

if (FALSE) { # \dontrun{
data(sample_spatial_data)
folds <- spatial_folds(sample_spatial_data, "longitude", "latitude", k = 5)
plot_spatial_folds(folds, sample_spatial_data, "longitude", "latitude", fold = 1)
} # }