plot_contribution: Plot variable contribution

In earthUI: Interactive 'shiny' GUI for the 'earth' Package

Plot variable contribution

Description

Creates a scatter plot showing each variable's actual contribution to the prediction. For each observation, the contribution is the sum of coefficient * basis function value across all terms involving that variable.

Usage

plot_contribution(earth_result, variable, response_idx = NULL)

Arguments

earth_result	An object of class "earthUI_result" as returned by fit_earth().
variable	Character string. Name of the predictor variable to plot.
response_idx	Integer or NULL. For multivariate models, which response column to plot (1-based). Default NULL uses the first response.

Value

A ggplot2::ggplot object.

Examples

result <- fit_earth(mtcars, "mpg", c("cyl", "disp", "hp", "wt"))
plot_contribution(result, "wt")

earthUI documentation built on March 26, 2026, 1:07 a.m.