# DoubleMetaphone

| **Name**    | ***DoubleMetaphone***                                                                                                                                 |
| ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
| Syntax      | DoubleMetaphone (String str)                                                                                                                          |
| Purpose     | To return Double Metaphone value.                                                                                                                     |
| Description | Returns Double Metaphone value for the given string. Double Metaphone is a phonetic algorithm that provides two alternative pronunciations for words. |
| Return Type | String                                                                                                                                                |
| Parameter   | str \[System.String] – String for which Double Metaphone is returned.                                                                                 |

![](https://github.com/astera-software/Astera_Data_Stack_v9/blob/main/.gitbook/assets/0%20\(1\)%20\(1\).png)

**Example**

In this example, we are passing a string value to the function transformation object using a *Variables* object.

Where,

*str =* Hello World

![](https://github.com/astera-software/Astera_Data_Stack_v9/blob/main/.gitbook/assets/1%20\(1\)%20\(1\).png)

In the output window, you can see that the Double Metaphone value of the specified string has been returned.

![](https://github.com/astera-software/Astera_Data_Stack_v9/blob/main/.gitbook/assets/2%20\(1\)%20\(1\).png)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://documentation.astera.com/astera-data-stack-v8/functions/matching/doublemetaphone.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.