BYCOL function
PRO
The BYCOL
function in Jspreadsheet Formulas Pro applies a lambda (anonymous) function to each column within a specified range. It processes one column at a time and returns a single-column array of the results — with one result per column.
This eliminates the need to manually apply a formula to each column, reducing error and improving scalability when handling multiple-column datasets.
Documentation
Applies a lambda function to each column of a range and returns an array of the results.
Category
Logical
Syntax
BYCOL(reference, lambda)
Parameter | Description |
---|---|
reference |
The range to process column by column. |
lambda |
A lambda function to apply to each column. |
Behavior
The 'BYCOL' function is responsible for executing a function across columns of data. Here are some expected behaviors:
- Empty cells: Usually ignored unless the applied lambda function treats them explicitly.
- Text values: Behavior depends on the function used in the lambda (e.g.,
AVERAGE
will ignore text, whileSUM
may error if text is present). - Booleans: Often treated as numbers (
TRUE = 1
,FALSE = 0
) depending on the operation. - Errors in cells: If any column contains an error and the lambda function doesn’t handle it, the result for that column will be an error.
- Return type: Produces a vertical array, one result for each column of the input range.
Common Errors
Error Name | Description |
---|---|
#VALUE! | This error occurs when the 'BYCOL' function encounters a cell with a value that is inappropriate for the function being applied. |
#REF! | This error is returned when the 'BYCOL' function refers to a cell that does not exist. |
#NAME? | This error occurs if the 'BYCOL' function does not recognize the name of the function being applied. |
#DIV/0! | This error is returned if the 'BYCOL' function attempts to divide by zero. |
Best practices
- Always ensure that the columns of data you are applying 'BYCOL' to contain the appropriate types of values for the function being used. For instance, don't use a function that expects numbers on a column of text values.
- Handle errors in your data before applying the 'BYCOL' function to avoid the entire function returning an error.
- Be aware that 'BYCOL' will ignore empty cells in most cases. If this is not the desired behavior, you may need to handle these cells separately.
- Make sure the function you are applying with 'BYCOL' is spelled correctly and exists in your spreadsheet software to avoid the #NAME? error.
Usage
A few examples using the BYCOL function.
BYCOL(A1:D3, LAMBDA(col, SUM(col)))
→ Returns a vertical array with the sum of each column from A1 to D3
BYCOL(B2:E5, LAMBDA(c, AVERAGE(c)))
→ Returns the average of each column between B2 and E5
BYCOL(C1:F4, LAMBDA(x, MAX(x)))
→ Returns the maximum value from each column
Interactive Spreadsheet Demo
<html>
<script src="https://jspreadsheet.com/v11/jspreadsheet.js"></script>
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />
<link rel="stylesheet" href="https://jspreadsheet.com/v11/jspreadsheet.css" type="text/css" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />
<script src="https://cdn.jsdelivr.net/npm/@jspreadsheet/formula-pro/dist/index.min.js"></script>
<div id="spreadsheet"></div>
<script>
// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');
// Set the extensions
jspreadsheet.setExtensions({ formula });
// Create a new spreadsheet
jspreadsheet(document.getElementById('spreadsheet'), {
worksheets: [{
data: [
[
"Sales",
"Marketing",
"IT"
],
[
12000,
8000,
15000
],
[
11500,
7500,
14500
],
[
13000,
9000,
16000
],
[
"=BYCOL(A1:C4, LAMBDA(col, MAX(col)))"
]
]
}]
});
</script>
</html>
import React, { useRef } from "react";
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/react";
import formula from "@jspreadsheet/formula-pro";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";
// Set license
jspreadsheet.setLicense('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');
// Set the extensions
jspreadsheet.setExtensions({ formula });
export default function App() {
// Spreadsheet array of worksheets
const spreadsheet = useRef();
// Worksheet data
const data = [
[
"Sales",
"Marketing",
"IT"
],
[
12000,
8000,
15000
],
[
11500,
7500,
14500
],
[
13000,
9000,
16000
],
[
"=BYCOL(A1:C4, LAMBDA(col, MAX(col)))"
]
];
// Render component
return (
<Spreadsheet ref={spreadsheet}>
<Worksheet data={data} />
</Spreadsheet>
);
}
<template>
<Spreadsheet ref="spreadsheet">
<Worksheet :data="data" />
</Spreadsheet>
</template>
<script>
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/vue";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";
import formula from "@jspreadsheet/formula-pro";
// Set license
jspreadsheet.setLicense('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');
// Set the extensions
jspreadsheet.setExtensions({ formula });
export default {
components: {
Spreadsheet,
Worksheet,
},
data() {
// Worksheet data
const data = [
[
"Sales",
"Marketing",
"IT"
],
[
12000,
8000,
15000
],
[
11500,
7500,
14500
],
[
13000,
9000,
16000
],
[
"=BYCOL(A1:C4, LAMBDA(col, MAX(col)))"
]
]
return {
data
};
}
}
</script>
import { Component, ViewChild, ElementRef } from "@angular/core";
import jspreadsheet from "jspreadsheet";
import * as formula from "@jspreadsheet/formula-pro";
// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');
// Set the extensions
jspreadsheet.setExtensions({ formula });
@Component({
standalone: true,
selector: "app-root",
template: `<div #spreadsheet></div>`
})
export class AppComponent {
@ViewChild("spreadsheet") spreadsheet: ElementRef;
// Worksheets
worksheets: jspreadsheet.worksheetInstance[];
// Create a new data grid
ngAfterViewInit() {
// Create spreadsheet
this.worksheets = jspreadsheet(this.spreadsheet.nativeElement, {
worksheets: [{
data: [
[
"Sales",
"Marketing",
"IT"
],
[
12000,
8000,
15000
],
[
11500,
7500,
14500
],
[
13000,
9000,
16000
],
[
"=BYCOL(A1:C4, LAMBDA(col, MAX(col)))"
]
]
}]
});
}
}