GROUPBY

Groups data by a key and applies an aggregator function to each group

Syntax

GROUPBY(range, key, aggregator)

Arguments

Argument	Description	Required
range	The range of data to group	Required
key	Lambda expression to determine the grouping key (e.g., COL[1])	Required
aggregator	Lambda expression to aggregate each group (e.g., SUM(COL[4]))	Required

Examples

Group sales by region and sum amounts

Group products by category and count

Group employees by department and average salary

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
• 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.
• MAP - Processes each row in an array with a formula including a COL or CELL keyword and returns it as a 2D array.
• 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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