Jevon Da Costa

Jevon Da Costa

Being a Theoretical Physics graduate, Jevon was exposed to different ways of dealing with large amounts of data using programming languages over the course of his degree such as Python and Java. Being able to see patterns and trends within data sets sparked an interest within all things data. Coming across Tableau in an email, Jevon was amazed with how easily and effectively Tableau dealt with data, and soon developed a great passion in making sense of data using Tableau.

Outside of work Jevon likes to keep himself healthy by playing range of sports such as Tennis, Football and rock climbing.

Blog Posts

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Mon 04 Jun 2018 | Jevon Da Costa
Reflective blog
I’m currently writing this blog in a hotel in San Diego awaiting to start my first placement at Solar Turbines with Robbin and Ollie. The four months of training at the Data School preparing me for this new start has been one heck of a ride in terms of learning and personal development
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Sun 13 May 2018 | Jevon Da Costa
Building a visualisation based on data densification
Data densification can be a hard concept to get around your head. Fortunately there are many blogs and articles online which help clarify what Tableau is doing when data becomes densified
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Mon 30 Apr 2018 | Jevon Da Costa
An approach to dealing with API's using Alteryx
One of the things I really enjoyed during dashboard week was using Alteryx to download information from API’s. It is a very useful skill to learn and DS8 managed to practice it on multiple occasion during the week
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Wed 25 Apr 2018 | Jevon Da Costa
How to customise your visualisation using specific font types
Day 3 of dashboard week involved using data from an API which had all sorts of information about the characters involved in each of the episodes in between season 1 and season 3 of Rick and Morty. I wanted the dashboard to be a bit more Rick and Morty themed
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Wed 25 Apr 2018 | Jevon Da Costa
#Dashboardweek Day 2
Whilst building my dashboard for my second day of dashboard week, I came across a neat trick which helped the look of my line charts
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Tue 24 Apr 2018 | Jevon Da Costa
How to use your own map style in Tableau
Tableau’s default maps are great. But sometimes you might grow tired of using the same map repeatedly. It would be nice if you could use a map which had a better use of colour or even better, use a map to your liking
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Wed 18 Apr 2018 | Jevon Da Costa
Using dashboard actions to create a pop up chart
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Fri 06 Apr 2018 | Jevon Da Costa
A Tableau tip - Switching the x-axis to the top of a chart
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Tue 03 Apr 2018 | Jevon Da Costa
The proper way to label bin ranges on a histogram - Tableau
Creating a histogram is an effective way to visualise data. However Tableau has not got an inbuilt function which labels the bins properly (you can check the numerous blogs online on how to create bins for histograms)
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Wed 21 Mar 2018 | Jevon Da Costa
Understanding the calculation fields for constructing a trellis chart in Tableau
Last week’s WorkoutWednesday involved using a trellis chart to construct the visualisation. They are different ways of doing this such as using a CASE calculation and manually assigning each row a x and y co-ordinate. This will be very time consuming if we have a lot of rows
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Mon 05 Mar 2018 | Jevon Da Costa
Using calculated fields to colour your visualisations
I produced a visualisation in one of last week’s training days which I thought was cool as I created a calculation which colour codes some regions of a scatter plot. It inspired some of the other members of DS8 to try to it out and because of that, I thought I ought to share how I did it
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Sun 04 Mar 2018 | Jevon Da Costa
There's more than meets the eye....well, some things quicker than others.
When creating data visualisations, we always have something we wish to convey to the user whether it be to a client with a business problem or just a passer-by viewing your viz on Tableau Public gallery
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Wed 21 Feb 2018 | Jevon Da Costa
Using a Top 10 filter on top of another filter
So you’re looking at a bar chart and want to filter out everything apart from the Top 10 items, by sales for example. You then want to see the top 10 items for a for a particular region, so you apply a region filter. You expect to see ten items each with a corresponding bar
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Thu 15 Feb 2018 | Jevon Da Costa
New to #MakeoverMonday?
So if you’ve probably used Tableau before, you would’ve most likely come across a weekly social data project by the name of #MakeoverMonday. If not (you’ll soon find out why so many people take part in it!) check it out here [http://www.makeovermonday.co.uk/]
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Mon 12 Feb 2018 | Jevon Da Costa
First Day in DS8
Well…here I am.  Glad to finally say I have started my job here at the Data School and elated to be a member of DS8 🙂 Since being offered a place a month ago I was excited to start this new stage in my life
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