Hydrological model skill score and Revised R-Squared

To address the issues of the commonly applied coefficient of determination (R²), revised R-squared and hydrological model skill score were recently introduced in the publication Onyutha C (2022) A hydrological model skill score and revised R-squared. Hydrology Research Hydrology Research 53 (1): 51–64, https://doi.org/10.2166/nh.2021.071. These metrics allow the modeller to diagnostically identify and expose systematic issues behind model optimizations based on other efficiency criteria such as mean squared error. Here, the MATLAB codes for computing the introduced "goodness-of-fit" metrics are provided.