Pointing the way with arrows
When creating dashboards, reports, or infographics, you often use other elements besides charts and tables. Individual numerical values are often presented as text (with a...
Visualising decision trees: The classic refurbished
In this post, we continue to discuss the visualisation of nested hierarchical data. In my previous blog, I showed how hierarchical data can be presented in a two-dimensional space...
Maps that grow out of trees: Data visualisation as an artform
In the previous PS blog “Trees that grow out of tables”, Janusz Wachnicki described how a good understanding of the humble crosstab can help us utilise classification trees more...
The series plot is a type o linear or layered plot most often used to represent changes in time. The plot may represent size for a primary variable category or statistics for a...
Correspondence analysis: Solution quality assessment
Correspondence analysis is a technique often thought of as an alternative to a crosstab (contingency table).
Perceptual maps: Choosing the correct normalization method
In this article you can find perceptual maps prepared using different normalization methods.
From crosstab to correspondence analysis: how exactly are the rows and columns of a crosstab transformed into coordinates used in a chart?
Story of a Pie
You may not know this but this year is the 217th birthday of the humble pie chart. Its first known, and purposeful, application was the visualisation of the geographical...
A table or a chart? Why not both? Hollywood film production costs and the use of a combined table chart
Dashboarding – reporting for decision-making
The dashboard is a type of panel board, a control panel, or instrument board.
Which car to buy: Marginal gains from chart margins
When it comes to charts ‘less’ is not necessarily better and ‘more’ can often lead to more functional data visualisation.