wizualizacja danych
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…
Multiple choice: which percentage base to use?
Multiple choice questions where the respondent may select more than one answer are commonly used in…
Dashboarding – reporting for decision-making
The dashboard is a type of panel board, a control panel, or instrument board.
Story of a pie
You may not know this but this year is the 217th birthday of the humble pie chart. Its first known,…
When letters count in a table
A common task analysts are often faced with is to establish whether there are any relationships bet…
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…
Speedometers in reporting
Speedometers, or gauges, are very intuitive hence their popularity in dashboarding. But they evoke …
Basic steps when design tables
Humans presented data in tabular format already in the ancient times. Thus, sometimes we can be del…
Violin plot
Before starting a more complex data analysis, it is worth taking a closer look at variable distribu…
Building charts with bricks
Data visualisation helps present in an attractive way information that could be difficult to interp…
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…
Visualising decision trees: the classic refurbished
In this post, we continue to discuss the visualisation of nested hierarchical data. In my previous …
Pointing the way with arrows
When creating dashboards, reports, or infographics, you often use other elements besides charts and…
Hierarchical graph
Hierarchical data can be presented using various visualisations. Today’s article will focus on the …
Word cloud: an extraordinary visualisation from an ordinary table
Frequency, group structure, or percentage share analysis is one of the first tasks of an analyst.
Sankey diagram
When analysing data on migration, transport, international trade, or traffic on a website, you are …
Tables for multiple questions measured using the same scale
Surveys often use questions where respondents assess different elements on the same scale.
When is a value ‘good’ or ‘bad’? About thresholds and alerts in dashboards
The dashboard is a form of reporting, which allows the analyst to convey information in a concise w…
Shopping for a mountain trip: analysis of multiple response sets
Multiple response sets often form the basis for further detailed questions about opinions on select…
Multidimensional scaling in brand positioning
Positioning a product in the context of the competition, or the identification of a product’s featu…
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 …