Tadpole Charts with Nicely Placed Labels in Tableau

I’m indifferent to amphibians, but I do like tadpole charts. In this blog, I’m going to show you the steps to create one with a little trick around labelling that may be useful in making this chart – but also for other charts in Tableau.

Table of Contents

This ones a bit involved, so here’s a table of contents:

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Analysing Interstate Migration Movements in Australia

I recently published a dashboard to allow people to view Australian interstate migration figures using ABS data.

As I mentioned in the post introducing the dashboard (which you can read here), interstate migration became a hot topic throughout the first two years of the COVID-19 pandemic.

We witnessed en-masse movements of Australians throughout the country – some were seeking an escape from COVID and associated lockdowns, while others were seeking a change of scenery as they realised they could work their high-paying jobs in Australian metro locations such as Sydney and Melbourne from the comfort of other … Read the rest

Visualising Population | Australian Interstate Migration Figures

I’m a migrant, and migration data has always fascinated me.

While the media focus is often on international migration to Australia, the COVID pandemic suddenly threw interstate migration into sharp focus, as lockdowns in various states may have incentivised different people to question where they lived and what type of life they wanted to live. 

And as someone who was in the Queensland real estate market in 2021, it was often common to read stories about how people fleeing the lockdowns in southern Australian States and Territories were adding a lot of demand to a piping hot housing market.

As … Read the rest

How to build and interpret an index chart using Tableau

The index chart is a chart type that often comes in extremely useful for analysing the change in time series data.

You’ve probably seen these charts frequently used in finance – such as tracking a financial index like the S&P500. Here’s an example pulled from Statista looking at US Stock Indices since the start of 2022.

Notice how all series start at the same point, and the chart plots the relative change in each series over time. We can immediately see that NASDAQ has performed relatively poorer than the Dow Jones and S&P 500 during this period.

As you might … Read the rest

Using a parameter to filter for specific records in a Tableau dashboard or worksheet

Filters are great and all, but I genuinely love Tableau parameters.

One technique that I frequently use for certain dashboard designs is using a parameter as the
primary method of interaction. That is, I use parameters to take input from users, which primarily drives the data viewed on screen. The parameter filters worksheets and shows related information about that input, acting much like a database record selection action or a filter in an Excel spreadsheet column.

For example, say you have a dashboard filled with customer activity for a large retailer. The dashboard might show overall sales per customer, … Read the rest

The importance of exploratory data analysis: Exploring the first B2VB challenge

I kicked off the year participating in a brand-new data visualisation curated by
Eric Balash. It’s called ‘Back to Viz Basics’, also known by its hashtag #B2VB. It’s a fortnightly challenge where the data visualisation community – both new and old – come together to practice some core charting skills. You can read about the initiative here.

The first ‘official’ challenge was on the theme of the scatter plot, a chart type that’s a core communication tool of the data professional. Eric challenged us to analyse some
American college basketball data, specifically on coaching, to … Read the rest