| gr_baseflow | Extract baseflow |
| gr_buffer_geo | Quasi-geographic buffering |
| gr_check_data | Check the correctness of data frame for separating |
| gr_check_params | Check the correctness of parameters list for separating |
| gr_fill_gaps | Fill missing daily data |
| gr_get_gaps | Get gaps in the daily data |
| gr_get_params | Get hydrograph separation parameters |
| gr_help_params | Get the information about parameters used to separate the hydrograph |
| gr_help_vars | Hydrograph separation variables |
| gr_join_rean | Join reanalysis data |
| gr_kable_tests | Tabular representation of tests |
| gr_plot_acf | Plot runoff ACF |
| gr_plot_hori | Horizon hydrograph plot |
| gr_plot_matrix | Runoff matrix plot |
| gr_plot_minmonth | Plot minimum runoff month |
| gr_plot_periods | Plot long-term hydrograph variable changes |
| gr_plot_ridge | Ridgeline hydrograph plot |
| gr_plot_sep | Plot hydrograph separation |
| gr_plot_tests | Plot change year density |
| gr_plot_vars | Plot interannual hydrograph variable changes |
| gr_read_rean | Read reanalysis data |
| gr_report | Report hydrograph separation and variables |
| gr_separate | Advanced hydrograph separation |
| gr_set_locale | Set the language that is used for plotting |
| gr_set_param | Set the value of hydrograph separation parameter |
| gr_summarize | Summarize hydrograph separation |
| gr_test_vars | Test hydrograph changes |
| spas | Spas-Zagorye daily runoff data |