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Articles
How to change how we think about visualization?
When presenting results, we often employ various types of charts that best suit the data. We want t…
Crosstabs as charts: introducing the contingency map
Tabular presentation is one of the most universal reporting techniques.
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…
Story of a pie
You may not know this but this year is the 217th birthday of the humble pie chart. Its first known,…
What do waterfalls have to do with data visualization?
A waterfall graph, otherwise known as a cascade chart, may mean very little to those of us from out…
Violin plot
Before starting a more complex data analysis, it is worth taking a closer look at variable distribu…
Series plot
The series plot is a type o linear or layered plot most often used to represent changes in time. Th…
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 unde…
Hierarchical graph
Hierarchical data can be presented using various visualisations. Today’s article will focus on the …
Sankey diagram
When analysing data on migration, transport, international trade, or traffic on a website, you are …
When two dimensions are not enough: the multidimensional scatterplot in ps imago pro
A scatterplot, or scatter graph, is a popular diagnostic tool for associations between quantitative…
Column chart, bar chart and histogram
Column and bar charts have long been some of the most popular ways of visualising data. Before deci…
Population pyramid
When looking for the best way to visualise the data you have, you will come across an impressively …