Excel BYROW function
Calculates one result for each row of a range with a LAMBDA. It has the same name in Spanish Excel.
Syntax
English Excel
=BYROW(array, lambda)
Spanish Excel (Mexico)
=BYROW(matriz, lambda)
Spanish Excel (Spain, Latin America)
=BYROW(matriz; lambda)
| Argument | What it is |
|---|---|
| array | The range to go through row by row. |
| lambda | A LAMBDA that receives one row and returns a single value. |
Example
BYROW(range, LAMBDA(row, calculation)) hands the LAMBDA one whole row at a time and returns one result per row. One formula then gives the total, maximum or average of every row.
=BYROW(B2:D6,LAMBDA(fila,SUM(fila)))
Common mistake
Excel 365 only. If the LAMBDA returns several values per row it gives #CALC!. For columns there is BYCOL.
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Practice BYROW
Type the formula in the sheet and check it instantly. Spanish or English function names both work. See all lessons
One total per row with BYROW
BYROW(range, LAMBDA(row, calculation)) hands the LAMBDA one whole row at a time and returns one result per row. One formula then gives the total, maximum or average of every row.
In E2, with a single formula, calculate each salesperson’s quarter total.
| A | B | C | D | E | F | G | |
|---|---|---|---|---|---|---|---|
| 1 | Salesperson | Jan | Feb | Mar | Quarter | Best month | |
| 2 | Carmen | 48,200.00 | 51,300.00 | 47,900.00 | |||
| 3 | Jorge | 35,900.00 | 33,100.00 | 39,800.00 | |||
| 4 | Lucía | 61,750.00 | 58,200.00 | 64,100.00 | |||
| 5 | Andrés | 29,400.00 | 31,800.00 | 30,500.00 | |||
| 6 | Paola | 52,300.00 | 49,700.00 | 55,600.00 | |||
| 7 |
Tip: while typing, click a cell or drag across several to insert their reference. F4 anchors the reference with $.
Frequently asked questions
- What is BYROW called in Spanish?
- It has the same name: BYROW. What changes is the separator: Spanish Excel in Spain and much of Latin America separates arguments with semicolons.
- Why does BYROW use semicolons in some Excel versions?
- It depends on regional settings. Where the comma is the decimal mark (Spain, much of South America), Excel separates arguments with semicolons. English Excel and Mexican Spanish Excel use commas.
- What is the most common BYROW mistake?
- Excel 365 only. If the LAMBDA returns several values per row it gives #CALC!. For columns there is BYCOL.