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This example demonstrates comparison functions.

Functions:

ItemDescription
EQUAL Function Returns true if the first argument is equal to the second argument. Equivalent to the = operator.
NOTEQUAL Function Returns true if the first argument is not equal to the second argument. Equivalent to the <> or != operator.
ISEVEN Function Returns true if the argument is an even value. Argument can be an Integer, a function returning Integers, or a column reference.
ISODD Function Returns true if the argument is an odd value. Argument can be an Integer, a function returning Integers, or a column reference.

In this example, the dataset contains current measurements of the sides of rectangular areas next to the size of those areas as previously reported. Using these functions, you can perform some light analysis of the data.

Source:

sideAsideBreportedArea
41456
6635
8432
1515200
4728
12670
9981

Transformation:

In the first test, you are determining if the four-sided area is a square, based on a comparison of the measured values for sideA and sideB:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula EQUAL(sideA, sideB)
Parameter: New column name 'isSquare'

Next, you can use the reported sides to calculate the area of the shape and compare it to the area previously reported:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula NOTEQUAL(sideA * sideB, reportedArea)
Parameter: New column name 'isValidData'

You can also compute if the reportedArea can be divided into even square units:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula ISEVEN(reportedArea)
Parameter: New column name 'isReportedAreaEven'

You can test if either measured side is an odd number of units:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula IF((ISODD(sideA) == true) OR (ISODD(sideB) == true),TRUE,FALSE)
Parameter: New column name 'isSideOdd'

Results:

sideAsideBreportedAreaisSquareisValidDataisReportedAreaEvenisSideOdd
41456FALSEFALSETRUEFALSE
6635TRUETRUETRUEFALSE
8432FALSEFALSETRUEFALSE
1515200TRUETRUETRUETRUE
4728FALSEFALSETRUETRUE
12670FALSETRUETRUEFALSE
9981TRUEFALSEFALSEFALSE

See Also for EXAMPLE - Comparison Functions Equal:

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