## What is secondary table calculation in Tableau?

Add Secondary Calculation For example, you could add an initial table calculation to calculate the running total for sales per month within each individual year, and then a secondary calculation to calculate the year-over-year percent difference for each month from one year to the next.

## What is the difference between table calculation and calculated field in Tableau?

Table Calculations (including the Quick Table Calculations) live in our Tableau View. They are created in the view and stay there, locally in our worksheet. Calculated Fields are created on a data level and appear as a separate column in the data source.

How do you do nested calculations in Tableau?

Nested Table Calculations

1. Drag Sub-Category to Columns and Region to Rows.
2. Create a calculated field, 1-nest, with the definition TOTAL(SUM([Sales])) .
3. Create a second calculated field, 2-nest, with the definition TOTAL(SUM([Profit])) .
4. Create a third calculated field, 3-nest, with the definition [1-nest] + [2-nest] .

### How do you use a table calculation in a calculated field in Tableau?

Create a table calculation using the calculation editor

1. Step 1: Create the visualization. In Tableau Desktop, connect to the Sample-Superstore saved data source, which comes with Tableau. Navigate to a worksheet.
2. Step 2: Create the table calculation. Select Analysis > Create Calculated Field.

### What does ATTR do in Tableau?

ATTR() compares all of the values from each record in the underlying data that are grouped into one partition in the view (e.g. a bar, a circle, a cell, etc… ) and if the values are all the same then ATTR() will return that value.

What are the three major categories of calculations in Tableau?

There are three main types of calculations you can use to create calculated fields in Tableau:

• Basic expressions.
• Level of Detail (LOD) expressions.
• Table calculations.

## What is nesting in Tableau?

Nested sorting is sorting by a measure within another measure. So in Tableau, this is would be to sort the categories within each pane.

## Does Tableau support nested functions?

If you are coming to Tableau from Excel you are probably familiar with nested if statements. Nested IF statements occur when you have multiple criteria that need to be satisfied to return a certain output. Tableau’s if statements are a little different than other tools.

What is the difference between Dimension and attribute?

A dimension attribute is a column in a dimension table. Each attribute describes a level of summary within a dimension hierarchy. The dimension elements define the hierarchical relationships within a dimension table. The dimension attributes describe the dimension elements in terms that are familiar to users.

### What is the Zn function in Tableau?

ZN function in Tableau That’s the only use for ZN: to change Null numbers to zero. It works for both row level and aggregate numbers. This function will error if using it with String, Date or Boolean data types – or anything that’s not a number.