#FastFriday – 6 Minute Vizzes – 1st Episode

Welcome to the first in the #FastFriday series.

For context, this is a weekly challenge that Ben Moss, Ravi Mistry and myself will be participating in. The concept is as follows – We have to design a visualisation created from a dataset which we see for the first time when we connect to Tableau. We’re starting with a time limit of SIX (6) minutes to create a visualisation with meaning.

The objective? To learn about interpreting data better. To understand each other’s approach when faced with a new data set. And too see how well we viz under pressure.
We will then screen record and blog our experiences.

———————————
So, after this introduction, what happened in those 6 mins? 
I did not register my voice, but you can watch the video here.
I will think about adding my italian voice to it next time, so you can hear me talking to myself.
Start
It is interesting to see how I actually start, exploring the dataset, dragging fields and using measure values and measure names. How many records? What are these dimensions? What is the level of aggregation I would be interested to look at? What are the measures of the dataset and what I can tell out of it?
Then I decided my fields, Crime score and Education score…
Start building calculations
I wanted to normalize those value by population (a field I got into the view).
I noticed this: that even if I only got a few mins for this viz, I attempt calculations… At first, I did a mistake forgetting to aggregate those fields, then I go back later on in the video and correct that and I also change the field names… Is this important? I think so, it stress out my precision even if I am under stress, I go back and I recognise an error and I even think the name of the calculation is not the best, so I change it.
Building the view
After dragging into the view my two calculated field I play with them, trying to understand how to show them in the best way, so I put color in the view, then I switch the chart, etc.
In the last bit, I lose time, I got stricly the chart I wanted but I needed to play a bit further and I started to play too much and then I was unsure at a certain point if I was watching the screen program video (snagit) or it was actually tableau…
Anyway, I got this viz:
4min chart
A simple bar chart… showing by Local Authority here in the UK the Crime score over population and the Education score over population.
Adding 2 more minutes (let’s say the mins I lost), I got this dashboard:
6 mins chart.png
So I had time for formatting and creating a parameter and as well adding a title…
Here you can find the vizzes on my tableau public.
Why this experiment is great?
I did not think it was great until I watched the video, to be fair. Recording is the best part, because you can see how you reason and how you really build and analyse the data.
I think it is a fantastic way to see what went well and what went wrong, how to improve, etc.
What about us, the 3 muskeeters? 🙂
Just for fun, I called us the 3 muskeeters (I hope the spelling is correct). Ben, Ravi and I really like to share our thoughts and give each other feedbacks on what we do. I am honoured to do this experiment with them. It is beautiful to see how different we are, I admired Ravi talking along his thoughts process, very nice (also the sound he makes like a small pop 🙂 ) and Ben that starts building the skeleton of a dashboard. Great work, guys!
Do you want to try?
Here a random dataset (not the same we used, unfortunately) for you, if you want to try by yourself, do not forget to record what you do – it is the best part!
Have fun!
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2 thoughts on “#FastFriday – 6 Minute Vizzes – 1st Episode

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