Returns a calculated array of a specified row and column size, by applying a LAMBDA.
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.
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cols The number of columns in the array. Must be greater than zero.
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lambda A LAMBDA that is called to create the array. The LAMBDA takes two parameters:
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row The row index of the array.
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col The column index of the array.
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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))
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")))
