Posted by Eric

September 16, 2019

14:54

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LODs (Level of Detail Expressions) in Tableau

LOD expressions are an amazing, fantastic, and revolutionary enhancement in the Tableau world, but there are some things to keep in mind. An LOD expression is essentially an additional request for data within a database. Under the covers it’s a bit more complicated than this simple statement, but conceptually an LOD is a secondary request […]

Posted by Eric

July 3, 2019

13:57

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Visualizing Survey Data in Tableau Doesn’t Have to be Painful

Background One of the most common types of data we see at Unilytics is survey data. We’ve worked with surveys ranging from hundreds of respondents and dozens of questions to large surveys with tens of thousands of respondents and hundreds of questions. While there are some idiosyncrasies between small and large surveys, there are far […]

Posted by Eric

March 13, 2019

14:04

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Performance Tuning Checklist for Tableau Dashboards

The following list of changes, tweaks, or considerations are all designed to improve performance of a Tableau dashboard. Not all suggestions will work in all situations, so even with this list there is a need for experience and understanding of how Tableau works in order to properly evaluate this list. The list is generally presented […]

Posted by Eric

April 10, 2017

20:43

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Tableau Master Challenge #3

Calculating Measures in Prior Years Tableau makes many things significantly easier, but not everything. One very common challenge Tableau designers wade through is computing prior period values. For example, sales data for prior periods that align with the current year to date (YTD). To further illustrate the example, if the current YTD is only 128 […]

Posted by Eric

September 28, 2016

15:51

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How to Handle Outliers in Your Data

The Challenge A common request when analyzing large amounts of data is to evaluate the impact exceptional data has on results. Statistics addresses these needs by offering “median” and “average” when normalizing large numbers of data points. Median selects a data point in the exact center of all data points to define the “normal” value […]

Posted by Eric

April 29, 2016

05:04

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Tableau Master Challenge #1

This is the first in a series of challenges for those that believe they have mastered the more complicated aspects of Tableau. The series will call on your understanding of the intricacies of how Tableau functionality works.

Posted by Eric

March 3, 2016

17:27

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Optimize Data Visualizations with the Right “Visual Features”

As a follow-up to a prior blog post on the “Top 7 Data Visualization Best Practices”, I wanted to go into a bit more detail about “visual features”. In the prior blog, we discussed “intuitive” data visualizations and how that stems from your brain pre-attentively processing visuals. While it’s not technically accurate, many people think […]

Posted by Eric

February 23, 2016

11:26

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Top 7 Data Visualization Best Practices

Do you want to create the ultimate, useful, intuitive data visual? Whether you are new to data visualization, familiar with it, or an expert, there is a lot to know besides how to use your favourite data visualization tool. There are best practices relating to the presentation of data in visual form that supersede the […]

Posted by Eric

November 3, 2015

13:05

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5 Must Dos BEFORE Creating Dashboards

In the world of data visualization, a lot of focus is paid to the visualization tools themselves. Should I use a time-series visual, a scatter plot, or a heat map? What is the best way to visualize survey data? Can I export my dashboard to a PDF? These are perfectly valid questions, but as much, if not more, attention should be spent on what needs to occur BEFORE you even open up your visualization tool. Here are five of the most important pre-visualization considerations we recommend based on our extensive experience with data and visualization.

Posted by Eric

October 29, 2013

10:38

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How to Design and Build Effective Dashboards in Tableau

The Data Visualization & Dashboards Seminar we hosted in Toronto last week was a tremendous success, and I would like to extend a thank you to all those who attended! We have received so many requests for the dashboards presented during the “How to Design and Build Effective Dashboards” demonstration session, I thought I would share them in this blog. The underlying story/premise and methodology used to support the story are described for each of the four dashboards.

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