adjusted_r_squared      Adjusted coefficient of determination
ar1_covariance          AR(1) covariance matrix
choose_dimension        Choose dimension from criteria table
compute_dr              Compute Directional Regression
compute_information_criteria
                        Compute model selection criteria
compute_phd             Compute Principal Hessian Directions
compute_save            Compute Sliced Average Variance Estimation
compute_scores          Compute SDR scores for new data
compute_sdr             General SDR kernel dispatcher
compute_sir             Compute Sliced Inverse Regression
cov_complexity_C1       Covariance complexity C1
cov_complexity_C1F      Scale-invariant covariance complexity C1F
cov_condition_number    Covariance condition number
cov_diagnostics         Covariance eigenvalue summary
cov_effective_rank      Effective covariance rank
cov_lw                  Ledoit-Wolf type covariance estimator
cov_mec                 Maximum Entropy Covariance estimator
cov_oas                 Oracle Approximating Shrinkage covariance
                        estimator
cov_ridge               Ridge-type covariance estimator
cov_sample              Sample covariance matrix
criterion_weights       Information criterion weights
estimate_cov            General covariance estimator dispatcher
evaluate_prediction     Evaluate predictions
evaluate_prediction_cv
                        Repeated cross-validation for predictive
                        assessment
extract_loadings        Extract SDR loadings
filter_low_variance     Filter low-variance predictors
fit_downstream_lm       Fit downstream regression model on SDR scores
fit_risdr               Fit regularised and information-theoretic SDR
                        model
fit_risdr_realdata      Fit RISDR to real high-dimensional data
mae                     Mean absolute error
make_cv_folds           Create cross-validation folds
make_slices             Create response slices
mape                    Mean absolute percentage error
plot_cv_dimension       Plot cross-validation dimension selection
                        result
plot_dimension_selection
                        Plot dimension selection criteria
plot_ladle              Plot ladle dimension diagnostic
plot_loadings           Plot SDR loadings
plot_prediction         Prediction plot
plot_residuals          Residual plot
plot_scree              Scree plot of SDR eigenvalues
plot_sufficient         Sufficient summary plot
plot_sufficient2d       Two-direction sufficient summary plot
predict.risdr           Predict method for risdr objects
predict_downstream_lm   Predict from downstream SDR regression model
prediction_correlation
                        Prediction correlation
prepare_survival_response
                        Prepare survival response
print.risdr             Print risdr object
print.risdr_realdata    Print real-data RISDR workflow
print.summary.risdr     Print summary of risdr object
projection_matrix       Projection matrix
r_squared               Coefficient of determination
risdr-package           risdr: Regularised and Information-Theoretic
                        Sufficient Dimension Reduction
rmse                    Root mean squared error
run_one_simulation      Run one SDR simulation replication
run_risdr_simulation    Run SDR simulation study
select_dimension        Select structural dimension
select_dimension_cv     Cross-validation dimension selection for SDR
select_dimension_cv_icomp
                        Complexity-aware cross-validation for
                        structural dimension selection
select_dimension_ladle
                        Ladle-type structural dimension diagnostic
simulate_risdr_data     Simulate SDR data
slice_covariances       Compute slice covariance matrices
slice_means             Compute slice means
slice_proportions       Compute slice proportions
slice_summary           Summarise response slices
stabilize_cov           General covariance stabilisation dispatcher
stabilize_eigenfloor    Eigenvalue floor stabilisation
stabilize_nearest_pd    Nearest positive definite stabilisation
stabilize_ridge         Ridge stabilisation of covariance matrix
subspace_distance       Subspace distance
summarise_simulation    Summarise simulation results
summary.risdr           Summarise risdr object
