pub fn fpc_shap_values(
fit: &FregreLmResult,
data: &FdMatrix,
scalar_covariates: Option<&FdMatrix>,
) -> Option<FpcShapValues>Expand description
Exact SHAP values for a linear functional regression model.
For linear models, SHAP values are exact: values[(i,k)] = coef[1+k] * (score_i_k - mean_k).
The efficiency property holds: base_value + sum_k values[(i,k)] ~ fitted_values[i]
(with scalar covariate effects absorbed into the base value).