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.

Use Case: Create a calculated field that returns True if sales are greater than $500,000. You can replace the constant value of 500,000 in the formula with a parameter. Then, using the parameter control, you can dynamically change the threshold in your calculation.

• Create a Parameter
  You can create a new parameter directly from your semantic model.
• Edit a Parameter
  You can edit any parameter in your semantic model.
• Delete a Parameter
  You can delete any parameter from your semantic model.
• Use Parameters in Calculated Fields
  You can use parameters within the formula field when creating and editing calculated fields. You can either insert the parameter or when creating the formula use auto-suggestion. The formula automatically includes parameters when suggesting fields.