LAMBDA

Create custom functions with personalized calculations that can be reused within the spreadsheet using the LAMBDA function.

Syntax

LAMBDA(name; cal_or_name; [name]; [name2]...)

name: The variable to be used in the defined calculation.

cal: The formula or calculation that returns the function result using the defined parameters. It must be the final argument.

Examples

Formula

=LAMBDA(x;y;x*y)

=LAMBDA(x;y;x+y)(A2;B2) (While using directly in a cell)

=LAMBDA(x;IF(x<0;function(x-1);x))

Get a hands-on experience of the function in the embedded range below.

Remarks

The last parameter in the function must contain the calculation that returns the result.

Possible Errors

Errors	Meaning
#N/A!	The function could not find the value it was asked to look for. Commonly occurs in VLOOKUP and similar functions.
#NAME!	The function name is incorrect or invalid. The given defined name (if any) is invalid. There is a typo in the defined name used in the function. Double quotes are missing for text values in the function. Colon missing in a cell range reference.
#VALUE!	The given argument's data type is incorrect or invalid. For example, the function =DATE(A1:A3) will return a #VALUE error when a text value is present in the range.
#REF!	The given cell reference is incorrect or invalid. This error may occur when a cell/range has been deleted, moved, or pasted over.

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MAP
Applies a custom LAMBDA function to each value in the given array and returns an array with the result values. Syntax MAP(array; lambda_or_array1; [lambda1_or_array2]...) array: The cell range containing the values given as input. Eg., A2:A8 lambda: ...
BYCOL
Applies LAMBDA to each column in the given array and returns an array of the results. Syntax BYCOL(array; lambda(column; calculation)) array: The cell range containing the values given as input. Eg., A2:C8 lambda: The function to be applied to each ...
SCAN
Returns an array as a result of scanning all the given values by applying LAMBDA to each value. The result array will be the same size as the source array. Syntax SCAN([initial_value]; array; lambda(accumulator; value; calculation)) initial_value: ...
BYROW
Applies LAMBDA to each row in the given array and returns an array of the results. Syntax BYROW(array; lambda(row; calculation)) array: The cell range containing the values given as input. Eg., A2:C8 lambda: The function to be applied to each row in ...
REDUCE
Returns a single value by applying LAMBDA to each value in a given array and returning total value in the accumulator. Syntax REDUCE([initial_value]; array; lambda(accumulator; value; calculation)) initial_value: The start value for accumulator. Eg., ...