Adrien Sourdille

Adrien holds a Master's in Geographic Data Science from the London School of Economics and is passionate about using data analysis to drive economic sustainability. He obtained his French baccalaureate with the highest honors before completing a three-year undergraduate program in Management at LSE, where he gained expertise in accounting, financial practices, and organizational behaviors.

Adrien then completed an MSc in Geographic Data Science at LSE, where he studied reinforcement learning, environmental economics, and spatial data analysis. During this time, he learned to answer causal research questions and developed a passion for mapping and data visualization. Adrien applied his expertise in Tableau and Alteryx on high-stakes projects during his 12 month placement at BAE Systems, a leading defense and aeronautics company.

In his free time, Adrien loves to travel, train Jiu Jitsu, and play football. He is eager to develop his skills further and is confident in his ability to leverage data to produce actionable insights.

Certifications

Blog Posts

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Tue 19 Nov 2024 | Adrien Sourdille
How to Pass the SnowPro Core Certification
If you’re thinking about passing the SnowPro, here’s a guide to help you prepare, study effectively, and pass the exam, along with my personal insights on my experience
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Wed 31 Jan 2024 | Adrien Sourdille
Dealing with French Characters in Tableau
If you import French characters (or other special characters) in Tableau, you might be in for a bad surprise. Indeed, depending on the settings of your workbook, Tableau might not be able to process the special characters in your string and will modify them in odd ways
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Wed 17 Jan 2024 | Adrien Sourdille
Keeping special French Characters when inputing a file in Alteryx
Introduction: Alteryx, a powerful data analytics and preparation tool, has proven to be indispensable for users seeking to transform raw data into valuable insights
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Thu 15 Jun 2023 | Adrien Sourdille
Add a transparent color to your palette
As I was building a viz, I had null values in a dimension that I did not want to exclude
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Mon 12 Jun 2023 | Adrien Sourdille
Building a radial heatmap in Tableau
For a complete video tutorial, I highly recommend Will Sutton's free tutorial on building radial heatmaps in Tableau. Introduction In this blog, we will explore the process of creating a radial heatmap in Tableau
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Tue 06 Jun 2023 | Adrien Sourdille
Making a Secondary Filter Dependent on a Primary Filter in Tableau
Here is a quick blog explaining why and how you might make a secondary filter dependent on a primary filter. Why? When filtering a dataset by two different values, you might want to drill down into a specific part of your dataset first before filtering further with a secondary filter
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Fri 02 Jun 2023 | Adrien Sourdille
Dashboard Week Day 4: Boys Band Dashboard
Today, we were tasked with a simple challenge: making a dashboard using information from the pudding boyband database. The only caveat was that we only had 3 hours to do it. I started by downloading the data and giving the documentation a thorough read
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Thu 01 Jun 2023 | Adrien Sourdille
Dashboard Week Day 3: working with NASA API
Today’s challenge was to pick one (or multiple) API’s of your choice to pull your data from and use to build a Tableau, Power BI workbook or Alteryx App that outputs interactive charts & reports
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Wed 31 May 2023 | Adrien Sourdille
Dashboard Weed Day 2: Recreating a tableau viz in PowerBI
Today, we were tasked with rebuilding an iconic viz in Power BI. This challenge was interesting as it pushed us out of our Tableau comfort zone and made us think more deeply about how the different dashboarding tool at our disposal really work
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Tue 30 May 2023 | Adrien Sourdille
Dashboard Week Day 1: Surveying crimes in the UK with an Alteryx App
We started dashboard week with an interesting challenge: Building an app to let the user pick a specific date range, category, and area (using a map interface tool) or postcode to update a data source onto Tableau server
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Thu 04 May 2023 | Adrien Sourdille
Creating a Bar Chart Race in Tableau: A 2 Step Guide
Creating Bar Chart Race in Tableau: A Step-by-Step Guide
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Thu 11 May 2023 | Adrien Sourdille
How to use Chat GPT inside Alteryx
Introduction: At this point, it is unlikely that those of you reading this blog are unaware of Chat GPT and the recent development of AI technology
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Wed 26 Apr 2023 | Adrien Sourdille
Adding a country flag to your bar chart in Tableau
In this blog post, I will guide you on how to add country flags to a bar chart in Tableau. Bar charts are a powerful visualization tool, and by adding country flags, we can enhance the visual appeal of our charts while also providing important context to the data
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Fri 21 Apr 2023 | Adrien Sourdille
Should data always be communicated in an impartial way?
Recently, I have had an inner debate about the impartiality of data. In the field of data science, the accuracy and impartiality of data are paramount to insure accurate and unbiased decision-making
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Wed 05 Apr 2023 | Adrien Sourdille
AI prompting: Creating stories within a Mock Dataset
Introduction: AI prompting refers to the process of using artificial intelligence models like GPT, to generate text based on a given input or prompt. Creating a mock dataset can be super helpful for a bunch of reasons
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Mon 10 Apr 2023 | Adrien Sourdille
Building a word cloud in Tableau
Have you ever found yourself staring at a huge chunk of text and struggling to make sense of it? Maybe you've tried highlighting keywords or skimming through it, but still, the information doesn't seem to stick
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Tue 04 Apr 2023 | Adrien Sourdille
When not to use Chat GPT to create Mock Datasets?
Introduction: Creating a mock dataset can be super helpful for a bunch of reasons
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Sun 26 Mar 2023 | Adrien Sourdille
Autofilling rows between dates in Alteryx
In this blog, you will learn how to use the Generate Row tool in Alteryx to automatize the creation of rows between two dates in a record
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Tue 07 Mar 2023 | Adrien Sourdille
10 easy steps to build a bump chart in Tableau
A bump chart is a data visualization that shows changes in the ranking of a set of items or entities over time. It is useful for analyzing and communicating changes in relative position and is commonly used in sports, finance, and business
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Wed 01 Mar 2023 | Adrien Sourdille
Embedding a visualization inside your blog
Visuals are a powerful tool for communicating complex ideas and data in a clear and compelling way. However, simply including an image or chart in a blog post may not be enough to convey the full depth and richness of the information being presented
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Tue 28 Feb 2023 | Adrien Sourdille
Aggregate functions in Tableau (part 2) | The Attribute Function
Although the attribute function is very popular and is often used to fix aggregation errors in our table calculations, rare are the people who understand what ATTR() actually does. In this blog, I will explore the attribute function and explain when and how to use it effectively
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Thu 16 Feb 2023 | Adrien Sourdille
Aggregate functions in Tableau (part 1) | Mean, median, min, max, and percentiles
Aggregating enables us to reduce the granularity of data to answer many different questions. In this blog post, we will take a look at simple aggregation functions available on Tableau
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Mon 13 Feb 2023 | Adrien Sourdille
Drop the pie!
Pie charts, donut charts, and Sankey diagrams are typically used to convey proportions and flows. They are considered engaging because they often look cool and aesthetically pleasing
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Thu 09 Feb 2023 | Adrien Sourdille
When and how should you join datasets on tableau prep?
Data analysis often requires combining data from multiple sources. For example, you may have student grades in one dataset and student names in another. To analyze the data effectively, you need to be able to see the grades and names data together. This is where joining datasets comes into play
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Tue 07 Feb 2023 | Adrien Sourdille
Data Visualization: why so many definitions?
As you embark on the Data School journey and create your first data visualization, you will undoubtedly ask yourself the following question: What is a data visualization, and why am I making it in the first place? Although simple, this question does not find a unique and definite answer
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