Barchart Matrix implemented with d3

The first 3 columns in the table are dimensions (independent, categorical variables), and the other 3 columns are measures (dependent, quantitative variables). The measures are functions of the dimensions. Each combination of the values of the dimensions occurs once. Since there are 3 Regions, 12 Months, and 2 Products, there are 3x12x2 = 72 rows.

The Barchart Matrix below provides an overview of the data in the table. The 3 dimensions are crossed with the 3 measures to produce a matrix, with each cell showing one measure as a function of one dimension.

Other Matrix-based Visualizations

Other visualizations that use a matrix of charts include

• The Generalized Pairs Plot / Generalized Plot Matrix (GPLOM): these techniques cross a set of both dimensions and measures with the entire same set, and then display an appropriate chart within each cell of the resulting matrix.
  • Emerson, John W., Walton A. Green, Barret Schloerke, Jason Crowley, Dianne Cook, Heike Hofmann, and Hadley Wickham (2013). "The generalized pairs plot". Journal of Computational and Graphical Statistics 22(1), pages 79-91. http://scholar.google.ca/scholar?q=emerson+green+schloerke+crowley+cook+hofmann+wickham+%22generalized+pairs+plot%22
  • Jean-François Im, Michael J. McGuffin, Rock Leung (2013). "GPLOM: The Generalized Plot Matrix for Visualizing Multidimensional Multivariate Data". IEEE Transactions on Visualization and Computer Graphics 19(12), pages 2606-2614. http://profs.etsmtl.ca/mmcguffin/research/#im_infovis2013
  • Michael Friendly (2014). "Comment on 'The Generalized Pairs Plot'". Journal of Computational and Graphical Statistics 23(1), pages 290-291. http://scholar.google.ca/scholar?q=friendly+comment+%22generalized+pairs+plot%22
• The scatterplot matrix (SPLOM), which crosses a set of measures with themselves, and displays a scatterplot in each cell of the matrix.
  • J. A. Hartigan (1975). "Printer graphics for clustering". Journal of Statistical Computation and Simulation, 4(3), pages 187-213. http://scholar.google.ca/scholar?q=hartigan+%22Printer+graphics+for+clustering%22
  • Sample implementation in d3: https://bl.ocks.org/mbostock/3213173
• The mosaic matrix, which crosses a set of dimensions with themselves, and displays a mosaic chart in each cell of the matrix.
  • Michael Friendly (1999). "Extending Mosaic Displays: Marginal, Conditional, and Partial Views of Categorical Data". Journal of Computational and Graphical Statistics 8(3), pages 373-395. http://scholar.google.ca/scholar?q=friendly+%22extending+mosaic+displays%22