Returns true if the argument evaluates to false, and vice-versa. Equivalent to the ! operator.
- The argument can be a literal Boolean, a function returning a Boolean, or a reference to a column containing Boolean values.
Since the function returns a Boolean value, it can be used as a function or a conditional.
NOTE: Within an expression, you might choose to use the corresponding operator, instead of this function. For more information, see Logical Operators.
Basic Usage
derive type:single value: NOT(customerHappiness > 70) as:'contactCustomer'
Output: If the value in the customerHappiness column is not greater than 70 then the value in the new contactCustomer column is true. Otherwise, the value is false.
Syntax and Arguments
derive type:single value:NOT(value1)
| Argument | Required? | Data Type | Description |
|---|---|---|---|
| value1 | Y | string | The value must be a Boolean literal, column reference, or expression that evaluates to true or false. |
For more information on syntax standards, see Language Documentation Syntax Notes.
value1
Expression, column reference or literal that evaluates to a Boolean value.
- Missing or mismatched values generate missing results.
Usage Notes:
| Required? | Data Type | Example Value |
|---|---|---|
| Yes | Function or column reference returning a Boolean value or Boolean literal | myHeight > 2.00 |
Tip: For additional examples, see Common Tasks.
Examples
Example - Logical Functions
AND, OR, and NOT logical functions. - See AND Function.
- See OR Function.
- See NOT Function.
In this example, the dataset contains results from survey data on two questions about customers. The yes/no answers to each question determine if the customer is 1) still active, and 2) interested in a new offering.
Source:
| Customer | isActive | isInterested |
|---|---|---|
| CustA | Y | Y |
| CustB | Y | N |
| CustC | N | Y |
| CustD | N | N |
Transform:
Customers that are both active and interested should receive a phone call:
derive type:single value:AND(isActive, isInterested) as:'phoneCall'
derive type:single value:OR(isActive, isInterested) as:'sendEmail'
derive type:single value:AND(NOT(isActive),NOT(isInterested) as:'dropCust'
set col:sendEmail value:IF(phoneCall == "TRUE", FALSE, sendEmail)
| Customer | isActive | isInterested | dropCust | sendEmail | phoneCall |
|---|---|---|---|---|---|
| CustA | Y | Y | FALSE | FALSE | TRUE |
| CustB | Y | N | FALSE | TRUE | FALSE |
| CustC | N | Y | FALSE | TRUE | FALSE |
| CustD | N | N | TRUE | FALSE | FALSE |
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