This repository relates to the course taught at the Faculty of Science, Charles University, called Hydroinformatika (Hydroinformatics, abbreviated HIF). This subject is attended mainly by bachelor students. Topics here relate to the part devoted to the use of R for dealing with hydrological tasks, such as trend analysis and spatial interpolation. Tidyverse approach is preferred when working with data and geodata. There are official descriptions of the subject in the Study Information System (SIS), in Czech (https://is.cuni.cz/studium/predmety/index.php?do=predmet&kod=MZ330P114) and English (https://is.cuni.cz/studium/eng/predmety/index.php?do=predmet&kod=MZ330P114).