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Outdated release! Latest docs are Release 8.2: LESSTHANEQUAL Function

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Returns true if the first argument is less than or equal to the second argument. Equivalent to the <= operator.
• Each argument can be a literal Integer or Decimal number, a function returning a number, or a reference to a column containing numbers.

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 Comparison Operators.

Wrangle vs. SQL: This function is part of Wrangle , a proprietary data transformation language. Wrangle is not SQL. For more information, see Wrangle Language.

## Basic Usage

lessthanequal(myValue, maxLimit)

Output: Returns true when the the myValue column is less than or equal to the value in maxLimit.

## Syntax and Arguments

lessthanequal(value1, value2)

ArgumentRequired?Data TypeDescription
value1YstringThe first value. This can be a number, a function returning a number, or a column containing numbers.
value2YstringThe second value. This can be a number, a function returning a number, or a column containing numbers.

### value1, value2

Names of the column, expressions, or literals to compare.

• Missing values generate missing string results.

Usage Notes:

Required?Data TypeExample Value
YesColumn reference, function, or numeric or String valuemyColumn

## Examples

### Example - Basic Comparison Functions

This simple example demonstrate available comparison functions:

Source:

colAcolB
111
210
39
48
57
66
75
84
93
102
111

Transformation:

Add the following transforms to your recipe, one for each comparison function:

Transformation Name New formula Single row formula LESSTHAN(colA, colB) 'lt'

Transformation Name New formula Single row formula LESSTHANEQUAL(colA, colB) 'lte'

Transformation Name New formula Single row formula EQUAL(colA, colB) 'eq'

Transformation Name New formula Single row formula NOTEQUAL(colA, colB) 'neq'

Transformation Name New formula Single row formula GREATERTHAN(colA, colB) 'gt'

Transformation Name New formula Single row formula GREATERTHANEQUAL(colA, colB) 'gte'

Results:

colAcolBgtegtneqeqltelt
111falsefalsetruefalsetruetrue
210falsefalsetruefalsetruetrue
39falsefalsetruefalsetruetrue
48falsefalsetruefalsetruetrue
57falsefalsetruefalsetruetrue
66truefalsefalsetruetruefalse
75truetruetruefalsefalsefalse
84truetruetruefalsefalsefalse
93truetruetruefalsefalsefalse
102truetruetruefalsefalsefalse
111truetruetruefalsefalsefalse

### Example - Using Comparisons to Test Ranges

In the town of Circleville, citizens are allowed to maintain a single crop circle in their backyard, as long as it confirms to the town regulations. Below is some data on the size of crop circles in town, with a separate entry for each home. Limits are displayed in the adjacent columns, with the inclusive columns indicating whether the minimum or maximum values are inclusive.

Tip: As part of this exercise, you can see how to you can extend your recipe to perform some simple financial analysis of the data.

Source:

House155.510Y25N
House21210Y25N
House314.2510Y25N
House43.510Y25N
House52710Y25N

Transformation:

After the data is loaded into the Transformer page, you can begin comparing column values:

While accurate, the above transform does not account for the minInclusive value, which may be changed as part of your steps. Instead, you can delete the previous transform and use the following, which factors in the other column:

In this case, the IF function tests whether the minimum value is inclusive (values of 10 are allowed). If so, the LESSTHANEQUAL function is applied. Otherwise, the LESSTHAN function is applied. For the maximum limit, the following step applies:

Now, you can do some analysis of this data. First, you can insert a column containing the amount of the fine per foot above the maximum or below the minimum. Before the first derive command, insert the following, which is the fine (\$15.00) for each foot above or below the limits:

Transformation Name New formula Single row formula 15 'fineDollarsPerFt'

At the end of the recipe, add the following new line, which calculates the fine for crop circles that are too small:

Transformation Name New formula Single row formula IF(tooSmall == 'true', (minRadius_ft - Radius_ft) * fineDollarsPerFt, 0.0) 'fine_Dollars'

The above captures the too-small violations. To also capture the too-big violations, change the above to the following:

Transformation Name New formula Single row formula IF(tooSmall == 'true', (minRadius_ft - Radius_ft) * fineDollarsPerFt, if(tooBig == 'true', (Radius_ft - maxRadius_ft) * fineDollarsPerFt, '0.0')) 'fine_Dollars'

In place of the original "false" expression (0.0), the above adds the test for the too-big values, so that all fines are included in a single column. You can reformat the fine_Dollars column to be in dollar format:

Transformation Name Edit column with formula fine_Dollars NUMFORMAT(fine_Dollars, '\$###.00')

Results:

After you delete the columns used in the calculation and move the remaining ones, you should end up with a dataset similar to the following:

House11555.510Y25N\$457.50
House2151210Y25N\$0.00
House31514.2510Y25N\$0.00
House4153.510Y25N\$97.50
House5152710Y25N\$30.00

Now that you have created all of the computations for generating these values, you can change values for minRadius_ft , maxRadius_ft , and fineDollarsPerFt to analyze the resulting fine revenue. Before or after the transform where you set the value for fineDollarsPerFt, you can insert something like the following:

Transformation Name Edit column with formula minRadius_ft '12.5'

After the step is added, select the last line in the recipe. Then, you can see how the values in the fineDollars column have been updated.

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