9 Questions for Data Viz Legend Stephen Few + 1 for You

My career path was illuminated by Stephen Few. Eight years ago, I was looking for a solution to a problem. Stephen’s advice led me to Tableau. His books have been foundational in my understanding of effective communication through data visualization. Edward Tufte’s books are entertaining and informative. Few’s books are practical, how-to (and how-not-to) guides. Critical of bad visualization […]
How to Automate a Tableau Data Source Refresh with DMExpress
So, you’ve finally worked out your ETL process using Syncsort DMExpress and have it exporting a shiny new TDE file. Now what? Using the Custom Task in DMExpress, you can automate the publishing of that TDE to Tableau Server, and here’s how you do it: Step 1 Using the DMExpress job editor, create a new […]
What’s new in Tableau Server 9.0 for the Administrator
Today I’m going to give you a quick run through of the updates and changes you will see in Tableau Server 9.0 from an administrator’s perspective, and what has changed since Tableau Server 8.3 Visual Differences Firstly and most obviously are the visual changes. Tableau has completely redesigned the GUI, so we now have the […]
Tableau Essentials: Calculated Fields – String Functions
We are up to part four of our functions articles. In this article, we’ll cover String Functions. Check out the previous ones for Logical Functions, Number Functions and Date Functions. Those articles will also cover how to get to the Calculated Field window where you can use the functions in Tableau Desktop to create or […]
Predictive Analytics Innovation Summit 2015: State of Data Science

In February, I had the opportunity to attend the Innovation Enterprise Predictive Analytics Summit in San Diego, Calif. The conference lasted two days and featured data scientists from some very recognizable companies like Facebook, StubHub, BuzzFeed and eBay. The talks ranged from how to detect newsworthy events through internet photos to choosing the right advertising […]
Tableau Community Membership Analysis

My first post on the Tableau Community highlighted the real people that make it work in the form of a “Thank You” viz. It told the story of the most active 872 members using their avatars to create a mosaic representing the Tableau logo. But, there’s plenty more data where that came from. Let’s look […]
Workaround for PrimitiveExp:: MakePrimitive Caused by IFNULL and a Zero Length String in Tableau
Recently, a colleague ran into an issue with the workbook that is exported from our Audit tool in our Workbook Tools product: The error is Tableau Data Engine Error: 4: PrimitiveExp::MakePrimitive: map_lower_user2_val. Findings When I investigated, I discovered that it was caused by a bug in Tableau 9.0. In our workbook, we have a calculated […]
10 Questions for Iron Viz Champion Ryan Sleeper

Ryan Sleeper is a consultant based in Kansas City with a keen interest in professional sports, an infectiously positive attitude and a friendly nature. I first noticed Ryan because of his fine sports-related data visualizations and his winning performance in the 2013 Iron Viz competition. When I did my book tour last year, I made a point […]
5 Things I Learned at OpenVis Conference 2015

A little over a week ago, a few of my colleagues and I attended the OpenVis Conference in Boston and had a blast learning about new open source visualization technologies and hearing ideas for creating on the web. The lineup was full of amazing speakers, including Tableau’s Robert Kosara, infographic designer Nigel Holmes and Santiago […]
Power Tools for Tableau Webinar
Tableau purchased Power Tools in 2019. Contact Us for more information. We recently held a webinar on how InterWorks could help em’power’ your Tableau Experience, using the InterWorks Power Tools for Tableau. If you wanted a recap or fancy finding out exactly what could possibly make Tableau even better, read on… Do you have a successful Tableau […]