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Learning Tableau 10

Learning Tableau 10 - Second Edition

By : Joshua N. Milligan
4.2 (10)
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Learning Tableau 10

Learning Tableau 10

4.2 (10)
By: Joshua N. Milligan

Overview of this book

Tableau has for some time been one of the most popular Business Intelligence and data visualization tools available. Why? Because, quite simply, it’s a tool that’s responsive to the needs of modern businesses. But it’s most effective when you know how to get what you want from it – it might make your business intelligent, but it isn’t going to make you intelligent… We’ll make sure you’re well prepared to take full advantage of Tableau 10’s new features. Whether you’re an experienced data analyst that wants to explore 2016’s new Tableau, or you’re a beginner that wants to expand their skillset and bring a more professional and sharper approach to their organization, we’ve got you covered. Beginning with the fundamentals, such as data preparation, you’ll soon learn how to build and customize your own data visualizations and dashboards, essential for high-level visibility and effective data storytelling. You’ll also find out how to so trend analysis and forecasting using clustering and distribution models to inform your analytics. But it’s not just about you – when it comes to data it’s all about availability and access. That’s why we’ll show you how to share your Tableau visualizations. It’s only once insights are shared and communicated that you – and your organization – will start making smarter and informed decisions. And really, that’s exactly what this guide is for.
Table of Contents (12 chapters)
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8
8. Deeper Analysis – Trends, Clustering, Distributions, and Forecasting

Level of Detail calculations


Level of Detail calculations (sometimes abbreviated as LoD calcs or LoD expressions) are a special kind of calculation that allow you to perform aggregations at a specified level of detail, which may be different from the level of detail defined in the view, and then work with the resulting value at a row level. In this way, you can think of LoD calculations as a hybrid between Row Level calculations and Aggregate Row Level calculations.

Level of Detail syntax

Level of Detail calculations follow this basic pattern of syntax:

{[TYPE] [Dimension 1],[Dimension 2] : AGG([Measure])} 

The parts of the preceding declaration are as follows:

  • TYPE: Is the type of LoD calculation (FIXED, INCLUDE, or EXCLUDE), which are described in detail in the following section.

  • Dimension 1, Dimension 2: Is a comma-separated list of dimension fields that define the level of detail at which the calculation will be performed. You may use any number of dimensions to define the level of...

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Learning Tableau 10
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