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  A DataLens On-premises chart is a dataset visualization in the form of a
  table, diagram, or map."
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# DataLens On-premises chart

A _chart_ is a dataset visualization in the form of a table, diagram, or map.

There are several types of charts in DataLens:

* [Wizard charts](./dataset-based-charts.md) are created in a wizard based on data from one or more [datasets](../../dataset/index.md).
* [QL charts](./ql-charts.md) are created through direct queries to the source.
* [Editor charts](../../charts/editor/index.md) are visualizations and selectors created using JavaScript code.

DataLens supports different types of visualization: charts, tables, maps, etc. For more information, see the [Visualization reference](../../visualization-ref/index.md).

For more information about charts, see the following sections:

* [DataLens On-premises chart settings](./settings.md)
* [Measure Names and Measure Values in DataLens On-premises](./measure-values.md)
* Step-by-step guides:

  * [Creating a chart in DataLens On-premises](../../operations/chart/create-chart.md)
  * [Creating a QL chart in DataLens On-premises](../../operations/chart/create-sql-chart.md)
  * [Replacing a dataset in a DataLens On-premises chart](../../operations/chart/replace-dataset.md)
  * [Adding chart info in DataLens On-premises](../../operations/chart/add-description.md)
  * [Adding a hierarchy to charts in DataLens On-premises](../../operations/chart/add-hierarchy.md)
  * [Configuring a navigator in DataLens On-premises](../../operations/chart/config-chart-navigator.md)
  * [Configuring the display of null values in a DataLens On-premises chart](../../operations/chart/chart-null-settings.md)
  * [Managing a color palette in DataLens On-premises](../../operations/chart/create-palette.md)
  * [Adding parameters in the dashboard chart settings in DataLens On-premises](../../operations/chart/add-parameters.md)
  * [Adding an ID as a parameter in DataLens On-premises](../../operations/chart/add-guid.md)
  * [Adding a parameter to a chart in DataLens On-premises](../../operations/chart/add-parameter-chart.md)