Calculation scripts that perform ensemble hydrograph separation. Identical scripts in R and MATLAB are provided, along with demonstration input time series and the corresponding outputs. These scripts were tested on R version 3.6.2 (2019-12-12) and on MATLAB versions 2018b and 2109b. These scripts are made publicly available under GNU General Public License 3; for details see https://www.gnu.org/licenses/. ETH Zurich, WSL, James Kirchner, and Julia Knapp make ABSOLUTELY NO WARRANTIES OF ANY KIND, including NO WARRANTIES, expressed or implied, that this software is free of errors or is suitable for any particular purpose. Users are solely responsible for determining the suitability and reliability of this software for their own purposes.