plot_response_surface: Plots the response surfaces of a random forest model

In spatialRF: Easy Spatial Modeling with Random Forest

Plots the response surfaces of a random forest model

Description

Plots response surfaces for any given pair of predictors in a rf(), rf_repeat(), or rf_spatial() model.

Usage

plot_response_surface(
  model = NULL,
  a = NULL,
  b = NULL,
  quantiles = 0.5,
  grid.resolution = 100,
  point.size.range = c(0.5, 2.5),
  point.alpha = 1,
  fill.color = viridis::viridis(100, option = "F", direction = -1, alpha = 0.9),
  point.color = "gray30",
  verbose = TRUE
)

Arguments

model	A model fitted with rf(), rf_repeat(), or rf_spatial(). Default NULL
a	Character string, name of a model predictor. If NULL, the most important variable in model is selected. Default: NULL
b	Character string, name of a model predictor. If NULL, the second most important variable in model is selected. Default: NULL
quantiles	Numeric vector between 0 and 1. Argument probs of the function quantile. Quantiles to set the other variables to. Default: 0.5
grid.resolution	Integer between 20 and 500. Resolution of the plotted surface Default: 100
point.size.range	Numeric vector of length 2 with the range of point sizes used by geom_point. Using c(-1, -1) removes the points. Default: c(0.5, 2.5)
point.alpha	Numeric between 0 and 1, transparency of the points. Setting it to 0 removes all points. Default: 1.
fill.color	Character vector with hexadecimal codes (e.g. "#440154FF" "#21908CFF" "#FDE725FF"), or function generating a palette (e.g. viridis::viridis(100)). Default: viridis::viridis(100, option = "F", direction = -1, alpha = 0.9)
point.color	Character vector with a color name (e.g. "red4"). Default: gray30
verbose	Logical, if TRUE the plot is printed. Default: TRUE

Details

All variables that are not a or b in a response curve are set to the values of their respective quantiles to plot the response surfaces. The output list can be plotted all at once with patchwork::wrap_plots(p) or cowplot::plot_grid(plotlist = p), or one by one by extracting each plot from the list.

Value

A list with slots named after the selected quantiles, each one with a ggplot.

See Also

plot_response_curves()

Other visualization: plot_evaluation(), plot_importance(), plot_moran(), plot_optimization(), plot_residuals_diagnostics(), plot_response_curves(), plot_training_df(), plot_training_df_moran(), plot_tuning()

Examples

data(plants_rf)

plot_response_surface(
  model = plants_rf,
  a = "climate_bio1_average",
  b = "human_population",
  grid.resolution = 50
)

spatialRF documentation built on Dec. 20, 2025, 1:07 a.m.