Author page: Tim Ngwena

Tableau Conference 2017: Las Vegas Roundup

A super brief roundup of 2017 conference. A little lighter than last years effort but mainly because in 2018, I’ll be taking a slightly different approach to vlogging having claimed 2017 would be the year it would happen. Stay tuned and enjoy. [btx_video type=”external” video_url=”https://youtu.be/MAnDg1-123A”]

The difference between learning and discovering Tableau

Reflecting on my own learning and development Since my return to the team at The Information Lab, it’s been great to see the growth of the Data School. It prompted me to re-evaluate my own learning experience of Tableau. I started out with no experience, here’s my first attempts at visualisation, I produced this almost 4 years ago ahead of a meet…

#tabtQS 2: Google location history in Tableau

In case you missed post #1 check it out here, however this post is about Google location history. On the 19th June I gave a short talk on the Quantified Self and the iterative process by which I explore the data I collect and improve the way in which I handle it. In the talk I showed in 5 minutes how you…

#tabtQS 1: RescueTime in Tableau

Leading up to several talks I’ll be giving in April, I’m going to do a series of mini posts highlighting the process behind the quantified self workflows that I use. These will typically include Tableau and Alteryx so think of this as a how to guide geared towards these tools or more a workflow to replicate in your tool of choice. This…

Make your Tableau charts pop: Quick Tip

In this post I show you how a quick trick with contrast can lift your content off the page and give it some “pop”. That’s not an official design term but I think it describes the net effect. [btx_button link=”https://public.tableau.com/views/MakeyourchartspopQuicktip/Example?:embed=y&:display_count=yes” icon=”anchor”]View on Tableau Public[/btx_button] [btx_video type=”external” video_url=”https://www.youtube.com/watch?v=ZlAOP06vjs4″]  

Step Line Chart in Tableau: Quick Tip

In this quick video, I summarise how to create a step line chart in Tableau. [btx_video type=”external” video_url=”https://youtu.be/HaCdP43i6kI”] A step line chart is similar to a line chart except it uses horizontal lines to connect two points unlike a traditional line chart where the line follows the most direct route. In this particular case, We use the fixed level of detail calculation…

Donald Trump’s Tweets: Makeover Monday

I learnt alot with this challenge, but first here it is. [btx_image image_id=”45010″ link=”https://public.tableau.com/views/MakeoverMondayDonaldTrumptimelinesdonemost/TRUMPsTWEETS?:embed=y&:display_count=yes” position=”center” on_click=”link”][/btx_image] Date-time parsing This seemed easy at first, Tableau supports date parsing with a function so after some research I applied the following formula but as you can see from the image it wasn’t parsing the 24 hour clock correctly. [btx_image image_id=”45013″ link=”/” position=”center”][/btx_image] A tweet and a…

Tableau Conference 2016 Austin Texas Roundup Vlog

Conference has long passed but as ever, it’s never too late to reflect. I’ve put together a short video round up of my thoughts from conference in the last vlog from by Tableau conference Vlog series. [btx_video type=”external” video_url=”https://www.youtube.com/watch?v=VICN03Vldjs&index=1&list=PLRfaJ7ZL0cF5iXYNPaI3wxg6GdpN8DS2t”] You can catch other vlogs from this series below or in this YouTube playlist. Vlog #1 : Why attend Conference (Tableau conference 2016)…