Dear R-users, We are currently conducting a user study evaluating visualization methods from the R-package VIM (https://cran.r-project.org/web/packages/VIM/VIM.pdf) in the context of displaying missing data. Our aim is to evaluate what type of visualization may be best for solving particular tasks, and through this provide guidance for future research and development. I would like to invite you as an R-user and data analyst to participate in this study. The study is completely anonymous and is part of a project at University of Northumbria at Newcastle, UK. It starts with an instructive video, followed by a set of tasks that will take around 15 minutes to complete. If you have any questions or comments regarding the study, please contact sara.fernstad at northumbria.ac.uk. To the study: https://northumbria.onlinesurveys.ac.uk/survey-visualization-of-missing-dat a Your participation is important and very much appreciated! Kind regards, Sara ________________________________________________________________ Dr Sara J Fernstad Senior Lecturer Department of Computer and Information Sciences Northumbria University Newcastle upon Tyne NE2 1XE United Kingdom E-mail: sara.fernstad at northumbria.ac.uk Phone: +44 (0)191 243 7384 Office: Pandon 243 http://fee.northumbria.ac.uk/staff/jlhv8 http://fee.northumbria.ac.uk/staff/jlhv8/nova/