“Time-series — sets of values changing over time” A Tour Through the Visualization Zoo http://hci.stanford.edu/jheer/files/zoo/ This description of the word “Time-Series” is very close to the explanation in Oxfords dictionary which adds that the word comes from a statistic background and often the intervals are equal within the time-series. http://www.oxforddictionaries.com/definition/english/time-series?q=time-series Within our research project we are mainly interested in the visualization part within the vast field of statistics. In the book “The Visual Display of …