Explain the Logical Function ' NOT' in Tableau with Example?

 In Tableau, the "NOT" logical function is used to negate or reverse a Boolean expression. It returns the opposite of the specified Boolean value, converting true to false and false to true.

The syntax of the "NOT" function in Tableau is as follow:

NOT(expression)

Here's an example to illustrate how the "NOT" function works in Tableau:

Suppose you have a dataset of employees and their employment status, where the status is represented as either "Active" or "Inactive." You want to create a calculated field that identifies employees who are not active.

NOT([Employment Status] = 'Active')

In this example, the "NOT" function is used to negate the expression [Employment Status] = 'Active'. The expression compares the value of the [Employment Status] field to 'Active'. If the expression is true (i.e., the employment status is 'Active'), the "NOT" function will return false. If the expression is false (i.e., the employment status is not 'Active'), the "NOT" function will return true.

The "NOT" function is helpful for performing logical negation in Tableau calculations and conditional logic. It allows you to reverse the truth value of a Boolean expression, enabling you to create more complex conditions and filters based on the opposite condition. By using the "NOT" function, you can effectively manipulate Boolean values and perform logical operations in your analysis and visualizations.