November 9, 2019

Level of detail expressions (also known as LOD expressions) allow you to compute values at the data source level and the visualization level, giving you more control on the level of granularity you want to compute.

Types of LOD Expressions

There are three types of LOD ex...

November 5, 2019


The series, Tableau chart has always focused on one thing, helping Tableau users learn how to create different charts and graphs hence equipping them with different techniques of telling each data story.

Inspired by the mission of this series, this article w...

November 3, 2019


Tableau’s order of operation is the order in which Tableau performs actions. Anytime you build a view and add filters, those filters are executed in order established by the order of operations.

This order of operation is summarized in the figure below;


October 19, 2019

Word cloud, also known as a Tag cloud or text cloud, is a visualization of word frequency in a given text as a weighted list, typically used to depict keyword metadata (tags) in free form text. Tags are usually single words, and the importance of each tag is shown with...

October 16, 2019

Tableau CASE function applies the syntax (CASE-WHEN) in the following order to perform logical tests.

The CASE function evaluates <expression> , compares it to a sequence of values, <Value 1>, <Value 2>, <Value 3>, <Value 4>, …etc, and returns a result...

October 13, 2019

By default, all filters you set in Tableau are computed independently. Meaning each filter accesses all rows of data without regard of other filters. However, sometimes you can upgrade some of normal filters to become context filters – in which case the context filter...

October 8, 2019

Calendar heat maps is one of the powerful charts for illustrating activity over a long period of time, such as months or years. A powerful viz when you need to show yearly events – enabling users spot different trends that might have taken place.

The chart resembles a n...

September 21, 2019

Creating reliable visualizations which communicate the message intended doesn’t come easy. It requires a complete balance in selection of charts and graphs, a conservative use of colors and other visual cues to amplify your message. Most importantly it requires a simpl...

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