MIS171 Lecture Notes - Lecture 2: Mosaic Plot, Treemapping, Box Plot
6 Sep 2018
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Document Summary
Visualisation provides an ability to comprehend huge amounts of data. Visual exploration of data to discover patterns and relationships that are not readily visible. Visualisations often enable problems with data to become immediately apparent. Mostly reliant on the cognitive skills of the analyst. Will be spending most of the time preparing data. We usually look for following analytical patterns when looking. Pie charts: observe a portion of the total (a particular category) Box/dot plots: view distribution (shape) and unusual data elements. Histogram: view distribution and unusual data elements (grouping) Visualisation is used to tell the story or show the patterns that have been discovered in data. Visualisation focuses on the message so it is clear and easy to understand. Therefore most of the focus is on the design of the visualisation. It should be honest, unambiguous and an effective presentation of the data.
