| aggregate_xts | Aggregate values in xts objects |
| data_supply | Time series of wind and solar energy production |
| data_wind_de | Time series of average wind speed in Germany |
| fit_dist | Fit a distribution to data |
| get_drought | Get drought characteristics |
| get_pit | Calculate probability integral transform values |
| plot_sei | Plot standardised indices |
| std_index | Calculate standardised indices |