Semantic Definitions in Tableau Semantics

In Tableau Semantics, you can create semantic definitions that are composable and reusable across semantic models, such as calculated fields, parameters, groups, bins, and more.

• Use Calculated Fields
  If the underlying data doesn't include all the fields necessary for analysis, you can create fields by using calculations. These fields are called calculated fields. Calculated fields don’t physically exist in the database. They’re based around a formula and can include functions, operators, literals, or other inputs such as existing fields from your dataset.
• Formulas in Calculated Fields
  A formula tells the Tableau Semantics Query Generator how to calculate the fields when running queries. You can add logic on how to calculate raw data within the dimension or measure.
• Create a Calculated Field with Einstein
  You can use Einstein to easily and effectively create calculated fields within Tableau Semantics.
• Calculated Fields in Tableau Next
  Create calculated fields in Tableau Next using Einstein or Semantic Modeling.
• Parameters in Tableau Semantics
  A parameter is a variable, such as a number, date, or string, that can replace a constant value in a calculated field and can be used in other functions, such as filtering.
• Create a Group in Tableau Semantics
  Combine related objects to segment customers based on demographics, behavior, or purchasing patterns. You can also use a group to correct data errors, such as combining CA, Calif., and California into one data point, or to answer “what if” questions (“What if we combined the East and West regions?”). Reference groups directly in calculated fields to build custom metrics and dimensions using group labels.
• Create a Numeric Bin in Tableau Semantics
  A numeric bin is an equal—sized container that stores data values that correspond to or fit within the bin size. Bins divide a set of data into groups of equal intervals or sizes, resulting in a systematic distribution of data. Data from any object field can be used to create a bin. Generally, numeric bins are created out of measure fields. Bins are useful in data analysis as they provide a systematic data range that allows users to organize information and discover patterns efficiently. Bins are displayed as dimensions in Tableau Semantics. You can also use bin ranges in calculated fields.
• Dimension Hierarchies in Tableau Semantics
  Create a dimension hierarchy to provide a defined analysis path for data exploration through consumption layers. Group related dimensions and build a hierarchy using fields from single or multiple objects. This structure sequences consumption layers logically for efficient data exploration, eliminating the need to manually add separate fields to a report.
• Global Filters in Tableau Semantics
  Create global filters to ensure that all reports share the same focused, consistent baseline data. By restricting data at the model level, you filter out irrelevant records before they reach any downstream visualization.
• Currency in Tableau Semantics
  Use currency fields in Tableau Semantics to convert values into the corporate currency based on the settings in the semantic model. A currency field is a specific field type that is automatically associated with a Currency ISO Code field. You can convert data from one currency to the corporate currency when analyzing dashboards, building semantic models, or creating calculated fields. You can also create calculated fields based on currency measures, sort by currency fields, and ensure values are displayed in the corporate currency for global audiences.