Joanna Sarata - articles
Speedometers in reporting
Speedometers, or gauges, are very intuitive hence their popularity in dashboarding. But they evoke mixed feelings among analysts.
In today's post we will combine the classic (and timeless) with the modern (but not worse).
SNA or network as an analytical object
Today, we will look into Social Network Analysis (SNA), or Social Relation Analysis.
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...
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
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.
The Marimekko chart or analytical patchwork
What data can we show on a regular bar chart? How many variables can we use? For those who answered ‘not enough’ the Marimekko chart may be the answer.