What the world needs now is a ubiquitous schema that is without form and can capture everything. That sounds like Hadoop or some NoSQL capture/archive systems. We want these data sources to be more performant so that they can also support analytical analysis with tools like Tableau. Spark will help that along. What the...
Averages can be weighted too heavily on historical data: models expire, conditions change and behavior evolves. That is why a data analyst keeps a lot of tools in the kit to create an accurate picture of the present day. Window functions are used to remove...
I was recently lucky enough to present at the Berkeley Tableau User Group about how to create a viz that will keep people coming back. I’ll be writing more about this in a later post, but one of the steps I talked about was making your...
This post is also available in: German I am going to start off this blog post with a simple assumption: if you have used Tableau for a while, chances are you’ve read through the release notes on Tableau’s website. You were either checking if an...
I’ve been concentrating for weeks on updating my book to include new Tableau 9.0 features. There are a couple of new features that will be featured in this video: The Data Intpreter Ad hoc calculations (with autofill) The video will also show you how to incorporate data blending...
In this article on Tableau Functions, we’ll examine Aggregate Functions. Aggregate Functions are a type of function where values of multiple rows are grouped together as the input to form a single value of more significant meaning, such as a set or list. To access these...
Working on the InterWorks Expert Hotline I come into contact with many clients every day assisting them with all aspects of their Tableau deployment from data preparation to best practice dashboard design all the way through to complex table calculations and Tableau Server tuning. This new series...
I’ve admired Kelly’s Tableau Public work and her blog for several years. Late last year, I was in Vancouver giving a talk. That gave me the opportunity to have dinner with Kelly along with the George Gorczynski, the Tableau Picasso. We talked about data viz for several hours over dinner and had...
In our next Tableau Essentials article on functions, we’ll examine Type Conversion Functions. This group of functions allow you to take the result of any expression and convert it to another specific data type. These are important for preparing some fields for calculation or in...
Manny Pacquiao versus Floyd Mayweather T-Minus 2 Days...
So, you’ve finally worked out your ETL process using Alteryx and have it exporting a shiny new TDE file. Now what? Using the Run Command tool in Alteryx Designer you can automate the publishing of that TDE to Tableau Server, and here’s how you do...
When last we left our hero, she was complaining mightily about how when you have a calculated field in Tableau, and that field is referenced by another calculated field, things go seriously awry when you replace data sources. Luckily, there is a solution that works...
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....
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...
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...
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...
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...
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,...
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....
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...
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