# Dataset statistics

Before starting a mapping, it can be very helpful to look at the statistics for your dataset. The statistics show:

* the names of all the elements in your dataset
* whether they have been used (the count)
* whether the values are distinct or not (elements with unique values have a count that matches the number of distinct values and are displayed in green)
* the average length (or number of characters) in an element

By clicking on the name of an element you can also view the data in this element.

![Dataset statistics](/files/-MAQlD_eRlgSlmgv3GBq)

![Browsing the values in an element](/files/-MAQlZTSL7gJMuxEhBDr)


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# 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://carare.gitbook.io/mint-mapping-service/importing-metadata/dataset-statistics.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.