> For the complete documentation index, see [llms.txt](https://boxlang.ortusbooks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/list/listavg.md).

# ListAvg

Gets the average of all values in a list

## Method Signature

```
ListAvg(list=[string], delimiter=[string], multiCharacterDelimiter=[boolean])
```

### Arguments

| Argument                  | Type      | Required | Description                                      | Default |
| ------------------------- | --------- | -------- | ------------------------------------------------ | ------- |
| `list`                    | `string`  | `true`   | The list to compact                              |         |
| `delimiter`               | `string`  | `false`  | string the list delimiter                        | `,`     |
| `multiCharacterDelimiter` | `boolean` | `false`  | boolean whether the delimiter is multi-character | `false` |

## Examples

### Calculate average from query columns

[Run Example](https://try.boxlang.io/?code=eJxlkE1Lw0AQhs%2FJrxjSgwksS1IU%2FMBDtBUqmoLtTTxskyFZyO7qfqSI%2BN%2BdpiLB3oZ35pmZ9xW%2B69Gjg1v4CGg%2FK9ynkMiGaaGQ7dD5rVSYMNK0xxYtG4StO2FZg7VUok8gu4lHtGyaF0O0%2BF3J4DWOvuIoWi3gGnJGVVU%2BL6lOSq1pJwl3y812uxrF4oKfx9E3mzDFlHk0nT5h5vzyHzOfMptwcuaKF0TEb4e391Z6XAf%2FHjyZLo9%2FnzkQA1rRIhzsgyf%2FIB3MqqB2aB%2BMVYLGe%2Bl8ObTpMbZ70welF8KLqf%2FkLz%2FIuDdPhKQZZNTIeZ6TOAOHtdGN42OMPw6cbts%3D)

```java
athletes = queryNew( "id,name,bestTime", "integer,varchar,decimal" );
queryAddRow( athletes, [
	{
		ID : 0,
		NAME : "Anne",
		BESTTIME : 15.4
	},
	{
		ID : 1,
		NAME : "John",
		BESTTIME : 12.8
	},
	{
		ID : 2,
		NAME : "Sue",
		BESTTIME : 9.1
	}
] );
writeOutput( "Athlete's average best time is #NumberFormat( listAvg( queryColumnData( athletes, "bestTime" ).toList() ), "0.00" )# seconds." );

```

Result: Athlete's average best time is 12.43 seconds.

### Additional Examples

[Run Example](https://try.boxlang.io/?code=eJwrL8osSXUpzS3QUPDJLC5xLEvXUFAy1DHSMVZS0FTQtFbQ11dwrShITS5JTVHILy0pKC2xUjDiAor6puYmpRYpuJXmJZdk5udx5QC1B5cUKdgqKJnomOqYKVlzlSMMB8kWlxTp5UAtAZnNhdVwUy4ANGItuQ%3D%3D)

```java
writeDump( ListAvg( "1,2,3" ) ); // Expected output: 2
// Member Function
listStr = "4,5,6";
writeDump( liststr.listAvg() );
 // Expected output: 5

```

## Related

* [GetToken](/boxlang-language/reference/built-in-functions/list/gettoken.md)
* [ListAppend](/boxlang-language/reference/built-in-functions/list/listappend.md)
* [ListChangeDelims](/boxlang-language/reference/built-in-functions/list/listchangedelims.md)
* [ListCompact](/boxlang-language/reference/built-in-functions/list/listcompact.md)
* [ListContains](/boxlang-language/reference/built-in-functions/list/listcontains.md)
* [ListContainsNoCase](/boxlang-language/reference/built-in-functions/list/listcontainsnocase.md)
* [ListDeleteAt](/boxlang-language/reference/built-in-functions/list/listdeleteat.md)
* [ListEach](/boxlang-language/reference/built-in-functions/list/listeach.md)
* [ListEvery](/boxlang-language/reference/built-in-functions/list/listevery.md)
* [ListFilter](/boxlang-language/reference/built-in-functions/list/listfilter.md)
* [ListFind](/boxlang-language/reference/built-in-functions/list/listfind.md)
* [ListFindNoCase](/boxlang-language/reference/built-in-functions/list/listfindnocase.md)
* [ListFirst](/boxlang-language/reference/built-in-functions/list/listfirst.md)
* [ListGetAt](/boxlang-language/reference/built-in-functions/list/listgetat.md)
* [ListGetEndings](/boxlang-language/reference/built-in-functions/list/listgetendings.md)
* [ListIndexExists](/boxlang-language/reference/built-in-functions/list/listindexexists.md)
* [ListInsertAt](/boxlang-language/reference/built-in-functions/list/listinsertat.md)
* [ListItemTrim](/boxlang-language/reference/built-in-functions/list/listitemtrim.md)
* [ListLast](/boxlang-language/reference/built-in-functions/list/listlast.md)
* [ListLen](/boxlang-language/reference/built-in-functions/list/listlen.md)
* [ListMap](/boxlang-language/reference/built-in-functions/list/listmap.md)
* [ListNone](/boxlang-language/reference/built-in-functions/list/listnone.md)
* [ListPrepend](/boxlang-language/reference/built-in-functions/list/listprepend.md)
* [ListQualify](/boxlang-language/reference/built-in-functions/list/listqualify.md)
* [ListReduceRight](/boxlang-language/reference/built-in-functions/list/listreduceright.md)
* [ListRemoveDuplicates](/boxlang-language/reference/built-in-functions/list/listremoveduplicates.md)
* [ListRest](/boxlang-language/reference/built-in-functions/list/listrest.md)
* [ListSetAt](/boxlang-language/reference/built-in-functions/list/listsetat.md)
* [ListSome](/boxlang-language/reference/built-in-functions/list/listsome.md)
* [ListSort](/boxlang-language/reference/built-in-functions/list/listsort.md)
* [ListToArray](/boxlang-language/reference/built-in-functions/list/listtoarray.md)
* [ListTrim](/boxlang-language/reference/built-in-functions/list/listtrim.md)
* [ListValueCount](/boxlang-language/reference/built-in-functions/list/listvaluecount.md)
* [ListValueCountNoCase](/boxlang-language/reference/built-in-functions/list/listvaluecountnocase.md)


---

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