R2                      Model-efficiency R-squared
accuracy_plot_metrics   Summarize calibration from an accuracy plot
bias                    Mean error (ME) of quantitative predictions
ccc                     Lin's concordance correlation coefficient
correlation             Pearson correlation
coverage                Empirical prediction-interval coverage
coverage_error          Prediction-interval coverage error
crmse                   Centered root mean squared error
crps                    Continuous ranked probability score
crps_decomposition      CRPS reliability decomposition
diagram_stats           Statistics underlying summary diagrams
gg_coverage             Plot prediction-interval calibration
gg_pit                  Plot a probability integral transform histogram
gg_qcp                  Quantile calibration plot
gg_solar                Create a solar diagram
gg_target               Create a target diagram
gg_taylor               Create a Taylor diagram
interval_score          Central prediction-interval score
interval_width          Average prediction-interval width
kge                     Kling-Gupta efficiency: KGE (2009)
log_score               Logarithmic (ignorance) score
mae                     Mean absolute error
mape                    Mean absolute percentage error
mdae                    Median absolute error
mec                     Model efficiency coefficient
median_crps             Median continuous ranked probability score
model_metrics           Calculate prediction-validation metrics for one
                        or more models
mpe                     Mean percentage error
mse                     Mean squared error
msle                    Mean squared logarithmic error
nrmse                   Normalized root mean squared error
nse                     Nash-Sutcliffe efficiency
picp                    Prediction interval coverage probability (PICP)
pinball_loss            Quantile (pinball) loss
pit                     Probability integral transform
qcp                     Quantile coverage probability
r2                      Squared Pearson correlation
rae                     Relative absolute error
rer                     Range-to-RMSE ratio
rmse                    Root mean squared error
rmsle                   Root mean squared logarithmic error
rpd                     Ratio of performance to deviation
rpiq                    Ratio of performance to interquartile distance
rrmse                   Relative root mean squared error
sd_ratio                Prediction-to-observation standard deviation
                        ratio
sep                     Standard error of prediction
smape                   Symmetric mean absolute percentage error
uncertainty_metrics     Summarize prediction-interval validation
willmott_d              Willmott's index of agreement
