> ## Documentation Index
> Fetch the complete documentation index at: https://docs.anlytic.com/llms.txt
> Use this file to discover all available pages before exploring further.

# In

Tests if a value matches any candidate value in a subsequent list of candidate values. Returns True if the value matches any of the subsequent candidate values, False if no values are matched.

**Category:** `logical`

**Syntax:**

```
In([value_column], candidate1, [candidates 2+])
```

**Returns:** `BooleanColumn`

**Context Filtering:** ✓ Yes

## Parameters

| Name                    | Type          | Required | Description                                  |
| ----------------------- | ------------- | -------- | -------------------------------------------- |
| `value`                 | `column\|any` | ✓ Yes    | The value to test.                           |
| `candidate 1`           | `any`         | ✓ Yes    | The first candidate to test value against.   |
| `additional candidates` | `variadic`    | ✗ No     | Additional candidates to test value against. |

## Validation

* Minimum parameters: 2
* Maximum parameters: Unlimited

## Examples

```
In("green", "red", "green", "blue")
```

Tests if "green" matches any of the candidate values.
**Result:** `true`

```
In([Customer ID], 2000, 3000, 4000)
```

Returns True for rows where Customer ID is 2000, 3000, or 4000.