Peter Silvester

Peter Silvester

Throughout a degree in business Peter frequently encountered the power of data visualisation but it was not until the application process for the Data School that a whole new world was opened with the introduction to Tableau.

After a brief experience in the world of sports data collection, Peter unearthed a keen interest in the potential to guide understanding and tell stories through data analysis. The chance to join the Data School straight from university was not to be missed and he is excited to learn from the best in the data visualisation business.

A proud Yorkshireman, Peter is a sports enthusiast with a particular passion for the beautiful game (football). He also likes to stay up to date with the latest technological innovations and film releases.

User Roles in Tableau Server

There are 8 different site roles that can be assigned to your Tableau Server users. The roles determine how much access each user has to the content stored on the server and are assigned at a 'Site' level. Individual users can therefore have different levels of access...

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Level of Detail Part 3: Exclude & Include

LoD expressions give you the power to perform calculations that are independent of the level of detail in your view. Tableau has incorporated three 'scoping keywords' into LoD expressions and each allows you to determine the LoD you want in a different way. For this...

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Level of Detail Part 2: Syntax & Order of Operations

In the part one of this series we looked at what Level of Detail is in Tableau and mentioned how LoD calculations enable us to aggregate values on our own terms regardless of what is in the view. In this blog we will explore in more detail the different types of LoD...

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Level of Detail Part 1: Introduction

Before embarking on any kind of data analysis or visualisation it important that you know your data and the structure contained within it. This is particularly key when we are working with Level of Detail calculations because in order to specify the level at which...

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My Top 4 Tableau Keyboard Shortcuts

Switch between worksheets with CTRL + Tab I'm always clicking ALT + TAB to quickly flip between different applcations in Windows so I was happy to learn that a similar shortcut makes an appearance in Tableau. Pressing CTRL + Tab switches you to the next sheet or...

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Converting Spatial Data for Use in Tableau or Alteryx

When we have access to location information in a data set it can be great to visualise what is going on with a pretty map or do a deep dive into spacial analytics. Tableau and Alteryx are both incredibly useful for these processes but unfortunately it is not possible...

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Alteryx Tools: Data Cleansing

Its day 3 of our work with Alteryx at the Data School and I'm delighted to report that we have found the Data Cleansing tool. A relatively recent addition to Alteryx this handy tool is a quick way to perform simple data cleansing tasks without the need for using regex...

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Alteryx Basics: Fixing Bad Headers

It is not uncommon to come across data sets that will make it hard or impossible when it comes to analysing them and will need reshaping. One of those instances is when there are multiple dimensions being used as headers for a single column in the data (see the before...

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Reshaping Survey Data for Tableau

Tableau is an excellent tool for analysing survey results but before we can dive into visualisation we will often have to reshape the data set into a format that will play nicely in Tableau. Survey tools will usually output results in a one-row-per-respondent...

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Data School Day 2: Getting Stuck into Tableau

After a fun first day of the Data School in which our data viz tools were crayons and paper, day 2 signified the opening of our laptops and the start of our Tableau journeys. The first big task was to take on a Makeover Monday challenge, one of the most popular ever,...

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