Topic: Blog- Top 15 LOD Expressions

Description: Level of Detail Expressions provide a way to easily compute aggregations that are not at the level of detail of the visualization. You can then integrate those values within visualizations in arbitrary ways. That may sound abstruse, so this post will illustrate the concept through a series of common questions. Near the end, we will dive into some more advanced analytic examples. Read more...



 

Topic: Whitepaper- Understanding Level of Detail (LOD) Expressions

Description: If you have to start thinking about how to use the tool to solve the problem, the state of flow is broken. One common cause of this is the need to work with data that has been aggregated to different levels of detail. These questions are often simple to ask, but hard to answer. They often sound something like: Can I plot the number of days per quarter where my company had more than 100 orders?

To address these types of questions, Tableau 9.0 introduces a new syntax called Level of Detail (LOD) Expressions. This new syntax both simplifies and extends Tableau’s calculation language by making it possible to address level of detail questions directly. Read more...


Topic: Online Help- LOD

Description: Level of detail expressions support aggregation at dimensionalities other than the view level. With level of detail expressions, you can attach one or more dimensions to any aggregate expression.

Unlike table calculations, totals, or reference lines, level of detail expressions are computed in the data source. On the plus side, this lets you avoid the overhead of bringing all the data from the database to your computer over the network. With large data sources, this can be a huge performance gain. On the minus side, this can cause Tableau to run more complicated queries (for example, containing many joins), and if the underlying data source is slow, performance can suffer. Read more...


Topic: Blog- Tableau 9 Preview: Introduction to Level of Detail Expressions

Description: Description:we are going into more detail about an addition to the Tableau calculation language: Level of Detail Expressions (LOD Expressions). The language changes are small, deceptively small, but their impact on your data analysis will be profound. Level of Detail Expressions (LOD Expressions) in Tableau 9 will enable richer and more reusable visualizations.  Read Part 1, Part 2, Part 3.


 

Topic: Online Help- Actions

Description: Tableau allows you to add context and interactivity to your data using actions. Link to web pages, files, and other Tableau worksheets directly from your analytical results. Use the data in one view to filter data in another as you create guided analytical stories. Finally, call attention to specific results using highlighting.
For example, in a dashboard showing home sales by neighborhood you could use actions to help you quickly see relevant information for a selected neighborhood. Select a neighborhood in one view which then highlights the related houses in a map view, filters a list of the houses sold, and opens a web page showing census data for the neighborhood. Read more...


Topic: Blog- Understanding Tableau Data Extracts

Description: This is a three-part series that will take a large amount of information about Tableau data extracts, highly compress that information, and place it into memory — yours.

Or better yet, it will make that information available to you so you can grab what you need now and come back later for more. That’s much closer to the architecture-aware approach used by Tableau’s fast, in-memory data engine for analytics and discovery. Read Part 1, Part 2, Part 3.


Topic: Video- Dashboard Interactivity Using Actions

Description: Learn how to enhance the interactivity of your dashboards using highlight, filter, and URL actions. Watch now.