# EXAMPLE - Comparison Functions Equal

This example demonstrate the following comparison functions.

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

Transform:

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`:

`derive type:single value:EQUAL(sideA, sideB) as:'isSquare'`

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

`derive type:single value:NOTEQUAL(sideA * sideB, reportedArea) as:'isValidData'`

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

`derive type:single value:ISEVEN(reportedArea) as:'isReportedAreaEven'`

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

`derive type:single value:IF((ISODD(sideA) == true) OR (ISODD(sideB) == true),TRUE,FALSE) as:'isSideOdd'`

Results:

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