MAP
Processes each row in an array with a formula including a COL or CELL keyword and returns it as a 2D array.
Syntax
MAP(array, lambda)
Arguments
| Argument |
Description |
Required |
array |
The array to process |
Required |
lambda |
The lambda function to apply to each row |
Required |
Examples
Double each value in array
=MAP(A1:A4, COL[1]*2)
Result ⇒
Array: [[2], [4], [6], [8]]
Calculate square of each number
=MAP(A1:A3, CELL^2)
Result ⇒
Array: [[25], [100], [225]]
Convert temperatures from Celsius to Fahrenheit
=MAP(A1:A3, COL[1]*9/5+32)
Result ⇒
Array: [[32], [68], [212]]
Related Functions
Other Data functions:
- CHOOSE - Uses index to return a value from the list of value arguments
- COLUMN - Returns the column number of the current cell context.
- DROP - Drops the first N rows and optionally first N columns from an array. Returns an error if the result would be empty.
- FILTER - Returns a filtered array containing only rows that match the criteria
- GROUPBY - Groups data by a key and applies an aggregator function to each group
- HLOOKUP - Returns the corresponding value from the specified row of table which matches exactly or approximately to the first row of the table.
- HSTACK - Horizontally stacks arrays by appending columns
- INDEX - Returns a cell value from a list or table based on its column and row numbers.
- LAST - Returns the last N rows and optionally last N columns from an array. Returns an error if the result would be empty.
- MATCH - Returns the position of the item/lookup_value in the lookup_array or range.
- PICK - Selects specific columns from an array using column numbers or header names
- ROW - Returns the 1-indexed row number of the current cell
- SEQUENCE - Returns the list of generated sequential numbers in an array.
- SORT - Sorts the values in a range or array.
- TAKE - Returns the first N rows and optionally first N columns from an array. Returns an error if the result would be empty.
- TRANSPOSE - Returns the result after transposing the rows and columns of an array or range.
- UNIQUE - Returns a list of unique values in a list or range.
- VLOOKUP - Returns a value from a table by looking up a value in the first column and returning a value from the specified column
- VSTACK - Vertically stacks arrays by appending rows
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