Returns a calculated array of a specified row and column size, by applying a LAMBDA.

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Syntax

=MAKEARRAY(rows, cols, lambda(row, col))

The MAKEARRAY function syntax has the following arguments and parameters:

  • rows      The number of rows in the array. Must be greater than zero.

  • cols      The number of columns in the array. Must be greater than zero.

  • lambda       A LAMBDA that is called to create the array. The LAMBDA takes two parameters: 

    • row      The row index of the array.

    • col      The column index of the array.

Errors

Providing an invalid LAMBDA function or an incorrect number of parameters returns a #VALUE! error called "Incorrect Parameters".

Setting a row or col argument to a value < 1 or to a non-number returns a #VALUE! error.

Examples

Example 1: Create a 2D array representing a simple multiplication table

Copy the following formula into cell C2:

=MAKEARRAY(3, 3, LAMBDA(r,c, r*c))

First MAKEARRAY function example

Example 2: Create a random list of values

Enter the sample data into cells D1:E3, and then copy the formula into cell D4:

=MAKEARRAY(D2,E2,LAMBDA(row,col,CHOOSE(RANDBETWEEN(1,3),"Red","Blue","Green")))

Second MAKEARRAY Function example

See Also

LAMBDA function 

MAP function

REDUCE function

SCAN function

BYCOL function

BYROW function

ISOMITTED function

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