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Comparison: Equals

The Equals comparison is a simple comparison that determines whether or not two number values equal each other.

Use

Use the Equals comparison to match identical number values. Note that it is also possible to use the Absolute Value transformation function with this comparison if you wish to match number irrespective of their sign (for example, to match -0.5 with 0.5).

This comparison does not support the use of result bands.

Options

Option

Type

Purpose

Default Value

Match No Data pairs?

Yes/No

This option determines the result of a comparison when it compares two No Data (Null, or containing only whitespace characters) values for an identifier.

If set to No, the comparison will give a 'no data' result when comparing a No Data value against another No Data value.

If set to Yes, the comparison will give a full match (TRUE) when comparing a No Data value against another No Data value. A 'no data' result will only be returned if a No Data value is compared against a populated value.

Decimal place accuracy

Integer

This option allows you to specify the accuracy of the number matching to a number of decimal places.

For non integer numbers, that is, numbers with values after a decimal point such as 45.678 and 45.622, you can specify a number of decimal places to which the two values are equal.

For example, if set to 1, the values 45.678 and 45.622 will be considered equal, as the values 45.6 and 45.6 will be compared. If set to 2, they will not be considered equal, as the values 45.67 and 45.62 will be compared. Note that no rounding occurs (that is, 45.678 is considered as 45.6 and not 45.7) unless added as a transformation.

Example

In this example, the Equals comparison is used on two identifiers (Trade Amount and Trade Price) to find duplicate trades in a system storing stock market trades.

Example configuration

Match No Data pairs? = No

Decimal place accuracy = 2

Example results

The following table illustrates some example comparison results using the above configuration:

Value A	Value B	Comparison result
0.465	0.465	TRUE (match)
57.5	57.5	TRUE (match)
0	0	TRUE (match)
000109866	000109866	TRUE (match)
52.5624	52.5639	TRUE (match)
0.465	0.468	TRUE (match)
52.5721	52.5698	FALSE (no match)
0	1	FALSE (no match)
0.48	0.47	FALSE (no match)
000109877	000109879	FALSE (no match)