Tableau Parameters are a powerful tool in Tableau that allows you to create dynamic and interactive reports. By defining a parameter, you can provide a prompt for the user to input a value and use that value in calculations, filters, and reference lines. This makes the report more flexible and adaptable to different use cases.
Top N Use Case:
A common use case for Tableau Parameters is to allow the user to dynamically choose the number of items to display in a Top N view. For example, you can create a parameter that allows the user to choose the number of products to show in a sales report. When the parameter is changed, the view updates to show the top N products based on the user's input. This makes it easy to compare the sales of different numbers of products, without having to manually update the view each time.
