Numeric equality¤
Compares values numerically instead of their string representation as the ‘String Equality’ operator does. Allows to set the needed precision of the comparison. A value of 0.0 means that the values must represent exactly the same (floating point) value, values higher than that allow for a margin of tolerance.
Characteristics¤
This is a boolean distance measure, i.e., all distances are either 0 or 1.
Compares single values (as opposed to sequences of values). If multiple values are provided, all values are compared and the lowest distance is returned.
Examples¤
Notation: List of values are represented via square brackets. Example: [first, second] represents a list of two values “first” and “second”.
Returns 0 for equal numbers:
-
Input values:
- Source:
[4.2] - Target:
[4.2]
- Source:
-
Returns:
0.0
Returns 1 if at least one value is not a number:
-
Input values:
- Source:
[1] - Target:
[one]
- Source:
-
Returns:
1.0
Returns 0 for numbers within the configured precision:
-
Parameters
- precision:
0.1
- precision:
-
Input values:
- Source:
[1.3] - Target:
[1.35]
- Source:
-
Returns:
0.0
Returns 1 for numbers outside the configured precision:
-
Parameters
- precision:
0.1
- precision:
-
Input values:
- Source:
[1.3] - Target:
[1.5]
- Source:
-
Returns:
1.0
Parameter¤
Precision¤
The range of tolerance in floating point number comparisons. Must be 0 or a non-negative number smaller than 1.
- Datatype:
double - Default Value:
0.0