Tableau Parameters: The Key to Dynamic Dashboards
Parameters in Tableau are variables that can be used to filter, calculate, or control the behavior of a chart or dashboard. They allow you to create interactive dashboards that can be customized by the user or by external data sources.
To create a parameter in Tableau, follow these steps:
- Click on the “Create Parameter” button in the Data Source tab of the Data pane.
- In the Create Parameter dialog box, specify the name and data type of the parameter, as well as any additional options, such as the available values and default value.
- Use the parameter in a calculation or filter by dragging and dropping it onto the relevant field in the Marks card or the Filters shelf.
- Optionally, you can add a control, such as a dropdown list or slider, to the dashboard to allow the user to adjust the value of the parameter.
Parameters are useful for creating interactive dashboards and allowing users to customize the data being displayed. They can be used to filter data, control the behavior of charts and dashboards, or perform calculations on the data.
Tableau Parameters are a way to create dynamic inputs in Tableau that can be used in calculations, filters, and other parts of your analysis. They allow you to create a single input that can be reused across multiple calculations, filters, and other parts of your analysis.
Some of the key features of Tableau Parameters include:
- They can be created and edited in the Data pane.
- They can be used in calculations, filters, and other parts of your analysis.
- They can be set to a specific data type (e.g. string, integer, date, etc.).
- They can be set to allow or disallow all or specific values.
- They can be set to display as a drop-down list, or as a single line of text.
Some of the use cases for Tableau Parameters include:
- Creating dynamic date ranges for analysis.
- Creating dynamic input for calculations.
- Creating dynamic filters based on user input.
- Creating dynamic control of the visualization.
It is important to note that when you change the value of a parameter, any calculations, filters, or other parts of your analysis that reference that parameter will be automatically updated.