The main international R user conference, useR!, is typically hosted in Europe every other year. Back in 2016 when useR! was held in the USA, an alternative conference was held in Poland. Next year (when the useR! conference will be in Australia) the tradition continues, and the 2018 eRum (European R Users Meeting) will be held in Budapest, Hungary on May 14-16.
Around 400-500 attendees are expected, and the program committee is sure to put together an excellent collection of workshops and talks. If you'd like to contribute, workshop proposals are due on January 14, and abstracts for talks and posters are due on February 25. You can submit your proposals here.
eRum 2018: About the Conference