The #30DayChartChallenge ran for the first time in April 2021. This post gives a high-level overview of the challenge, my learnings and links to all the data sources I used.
Reflections on the #30DayChartChallenge
Adding Percentage Lines to Bars
This post walks through a method to quickly add lines over bars to show segments, which could be used at specific values or percentages.
Creating Multi-Step Help Overlay Screens
Help overlay screens can help orient your dashboard consumers; providing context, instructions and the intended flow of analysis. This post shows you how you can create multi-step help overlay screens using background images.
Geospatial Analysis with Map Layers
With the ability to combine and overlay more spatial data, the Map Layers functionality enables a wider variety of geospatial analyses. This post walks through an example of searching for an Airbnb in London that meets different criteria.
Creating Custom UIs with Map Layers
This blog post explores using Tableau’s new Map Layers feature to create custom User Interface elements such as popup charts, viz in tooltips and custom URL links.
Five Ways to use Images in Tableau
This post and associated workbook describe five methods of adding images to your Tableau visualisations including shapes, viz-in-tooltips, web objects, background images and image objects.
Tableau Map Layers
The new Map Layers feature allows you overlay multiple marks layers on a map removing the need to use a dual axis and opening up new possibilities for visualising multiple sources of spatial data.
Circular Sankey Template
This guest blog post by CJ Mayes provides a template and walkthrough of the process to create a circular Sankey diagram. With credits to Spencer Baucke and Luke Stanke.
Creating Links to Google Maps from Tableau Tooltips
If you have latitude and longitude fields in your data, you can create tooltip URL actions to open Google Maps in a browser at the exact location of those fields for any row in your data. This blog walks through how to create these links.
Swap Charts with a Parameter
This post explores different parameter configurations and the resulting user interface elements that are available for each, then shows how a parameter can be used to swap the visible chart on a dashboard.
Using Custom Mapbox Maps in Tableau
This post walks through how to create a basic custom Mapbox map, publish it and import it into Tableau Desktop for use as the background to a visualisation.
Creating Charts within a Hexmap
In this guest blog post Tamás Varga explains how you can create charts within a hexmap; a technique he used for a recent #MakeoverModay visualisation. Tamás also shares some of his design process and sources of inspiration.
Hierarchical Selections in Tableau
This post explores an approach for implementing hierarchical selections in Tableau which can be used for filtering and highlighting.
Previous_Value Table Calculation
The PREVIOUS_VALUE table calculation can be used to make custom versions of running sum calculations and generate comma separated lists of items. This blog gives an overview with these and other examples.
Tableau Animation Core Concepts
What is a mark ID? How are they created and how to they impact animation in Tableau? How do you create custom animations? This post aims to answer these questions and provide an understanding of the core concepts of animation in Tableau.
Creating a Chord Diagram with Tableau Prep and Desktop
Chord diagrams show, in a circular form, the inter-relationships between entities in a matrix. This post describes a method for creating a chord diagram using Tableau Prep and Desktop templates.
Creating Drill-Down Tables with Parameter Actions
This post walks through how to create a drill-down table in Tableau so you can see different levels of granularity at the same time as well as how to create a custom button to go back to the default view.
How has the UK responded to lockdown?
This blog post walks through some of the design and UX choices in making this visualisation about how different areas of the UK have responded to lockdown.
Exploring MoMAs Artwork Collection
This blog walks through my process for visualising the 139 thousand records in the Museum of Modern Art's catalogued collection.
Creating Two Colour Area Charts
This blog posts steps through how to create a two-colour area chart, with a different colour for positive and negative values.
