What is the detail shelf in Tableau?
The Rows and Columns Shelves Detail is defined by the dimensions you use to segment your measures. It doesn’t matter if you put your dimension in the Rows shelf or the Columns shelf, it will just change how the axes are labeled – it’s the difference between a horizontal bar chart and a vertical one.
What is level of detail in Tableau?
Level of Detail expressions (also known as LOD expressions) allow you to compute values at the data source level and the visualization level. However, LOD expressions give you even more control on the level of granularity you want to compute.
What is the detail option in Tableau?
The Marks card is a key element for doing visual analysis in Tableau. When you drag measures and dimensions to the Marks card, you encode your data with color, size, shape, text, and other properties that add context, detail, and meaning to the marks in the view.
What is a Lod in Tableau?
An important feature in Tableau is Level of Detail expressions (also known as LOD expressions), which are used to compute values at the data source level and the visualization level. They are useful as they provide more control over the level of granularity you want to compute.
How do you create a detail view in Tableau?
Select one or more fields in the Data pane and then choose a chart type from Show Me, which identifies the chart types that are appropriate for the fields you selected. For details, see Use Show Me to Start a View . Drop a field on the Drop field here grid, to start creating a view from a tabular perspective.
What is level of granularity in Tableau?
Granularity is the level of detail of the data. For example, when looking at graduation data, granularity would describe whether a row in the data set represents a single person or the graduating class of a university.
Why detail is used in Tableau?
Tableau level of detail expressions allow you to change the most granular place where an analysis takes place. An analysis, such as AVG(Sales) by State includes the dimension that you are slicing the dicing the measure by as well as the aggregation of the measure.
What is level of aggregation in Tableau?
When Aggregate Measures is selected, Tableau will attempt to aggregate measures in the view by default. This means that it collects individual row values from your data source into a single value (which becomes a single mark) adjusted to the level of detail in your view.
How does Tableau know at which level to aggregate values?
How do you show dimensions and measures in Tableau?
When you connect to a data source, Tableau automatically assigns each field in the data source as a dimension or a measure. You can find these in the data pane which is split into two sections: dimensions at the top, and measures at the bottom.
What happens when you add a level of detail in tableau?
When you add a level of detail expression to the view, Tableau must reconcile two levels of detail—the one in the view, and the one in your expression. The behavior of a level of detail expression in the view varies depending on whether the expression’s level of detail is coarser, finer, or the same as the level of detail in the view.
Why do you need shelves and cards in tableau?
Every worksheet in Tableau contains shelves and cards, such as Columns, Rows, Marks, Filters, Pages, Legends, and more. By placing fields on shelves or cards, you: Build the structure of your visualization. Increase the level of detail and control the number of marks in the view by including or excluding data.
How does the Lod calculation work in tableau?
LOD calculations allow you to add a fourth option in determining the level of detail. The great thing about LOD in Tableau is that you can do this independently from the dimensions used within your visualization. If I drag a field onto the Rows, Columns or Detail shelves, then the entire view is going to be affected.
Which is an example of a view level expression in tableau?
In this case, the dimensionality of the expression is view level. An example of a view-level expression is: If you drag this calculation to a shelf (or type it directly on a shelf as an ad-hoc calculation), Tableau encloses it in an AGG function: This is what is known as an aggregate calculation.