> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://help.sigmacomputing.com/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://help.sigmacomputing.com/_mcp/server. # Example representation: Workbook with a chart with reference marks (Beta) > Example Sigma code representation of a workbook with a chart with reference marks. This documentation describes one or more public beta features that are in development. Beta features are subject to quick, iterative changes; therefore the current user experience in the Sigma service can differ from the information provided in this page. This page should not be considered official published documentation until Sigma removes this notice and the beta flag on the corresponding feature(s) in the Sigma service. For the full beta feature disclaimer, see [Beta features](/docs/sigma-product-releases#beta-features). This is an example representation of a workbook, retrieved using the [Get a workbook](/reference/get-workbook) endpoint with the query parameter `includeContents=true`. Representations like this one can be used to create a workbook from code using the [Create a workbook](/reference/create-workbook) endpoint. Each page in this example library includes the code representation of the workbook and step-by-step instructions to create it in the Sigma UI. Consult this example and others in the [Workbook representation example library](/docs/workbook-representation-example-library) to: * Troubleshoot the formatting of a particular feature in code representation * Relate a feature from the Sigma UI to its representation in code * Provide context to AI tools used to create workbooks from code This example representation cannot be used as-is. All identifying details, such as IDs, names, and URLs, have been replaced with randomized ID values or generic substitutions. The format of these contents, like the length of ID values, is preserved for demonstrative purposes. However, this representation cannot be directly used without modification to the base URL, connection details, and more. For more information, see [Create and manage workbooks from code](/docs/manage-workbooks-as-code). ## System and user requirements To complete the steps in this example, you must meet the user requirements listed below for creating the workbook in the UI and creating it from code. The ability to create this workbook in the Sigma UI requires the following: * You must be assigned an [account type](/docs/account-type-and-license-overview) with the **Create, edit, and publish workbooks** permission enabled. * You must have access to a connection to a data platform. The ability to create a workbook from code requires the following: * You must be assigned an [account type](/docs/account-type-and-license-overview) with the **Create, edit, and publish workbooks** permission enabled. * You must have developer credentials for the Sigma API. For more information, see [Get started with the Sigma REST API](/reference/get-started-sigma-api). This example uses a table from the [Sigma Sample Connection](/docs/sigmas-sample-connection). Your organization might have disabled access to the Sigma sample connection. If so, you can contact an admin to enable it, or use a table from another connection to follow along with this example. ## Create the example workbook in the Sigma UI This example shows a simple workbook with a chart with reference marks element. To create this workbook in the Sigma UI: 1. Go to the **Home** page. 2. Select ![](https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/button-add.svg) **Create new** > **Workbook**. A new workbook opens. 3. From the **Add element** bar, select **Data** > **Table**. 4. In the **Select source** modal, search for the table `TRIP` in the `EXAMPLES.BIKES` schema. 5. Select the table to add it to the workbook. The table appears in the workbook. 6. Select ![](https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/add-dependent.svg) **Add child element** > **Chart**. A new bar chart element appears on the workbook canvas. 7. In the editor panel, select **Properties** and configure the bar chart with the following settings: | Option | Setting | | :------------- | :------------------- | | **Chart type** | **Line** | | **X-axis** | *Week of Start Date* | | **Y-axis** | *Count of Id* | 8. In the editor panel, select **Format**. 9. In the **Reference marks** section, select **+ Add new** to add a reference mark and configure it with the following settings: | Option | Setting | | :--------------- | :------------------------------- | | **Line or band** | **Line** | | **Axis** | **X-axis** | | **Value** | **Constant**, `November 1, 2014` | | **Line style** | **Dashed**, **2px**, **0A0A0A** | 10. Turn off the **Show label** toggle. 11. Turn on the **Show value** toggle. 12. In the **Reference marks** section, select **+ Add new** to add another reference and configure it with the following settings: | Option | Setting | | :--------------- | :--------------------- | | **Line or band** | **Band** | | **Axis** | **Y-axis** | | **Band start** | **Min**, *Count of Id* | | **Band end** | **Avg**, *Count of Id* | 13. In the document header, select **Save as**. 14. Enter a name for the workbook, such as `chart-with-reference-marks`. 15. Select **Save**. ## Get a code representation of this workbook To get a representation of this workbook, follow the steps in [Get the code representation of a workbook](/docs/get-the-code-representation-of-a-workbook). The code representation of this workbook appears like the following: #### YAML representation ```yaml workbookId: 87da5b7c-9c09-41ec-9d23-135c887f079d workbookUrlId: UnpPj4l0NGecmZD8KK4Car createdBy: zgzXpTRVbfX4ZE9TEm9q9fUsfXZ5o updatedBy: zgzXpTRVbfX4ZE9TEm9q9fUsfXZ5o createdAt: '2026-05-22T19:01:35.827Z' updatedAt: '2026-05-27T15:08:24.054Z' name: chart-with-reference-marks url: https://aws-api.sigmacomputing.com/org-name/workbook/UnpPj4l0NGecmZD8KK4Car path: My Documents/ latestVersion: 2 ownerId: zgzXpTRVbfX4ZE9TEm9q9fUsfXZ5o isArchived: false contents: schemaVersion: 1 elements: - id: PNRXIRgQM4 kind: table source: connectionId: b2af3691-12a0-48fa-a91d-fbe2e1b31627 kind: warehouse-table path: - EXAMPLES - BIKES - TRIP columns: - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/ID formula: '[TRIP/Id]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/DURATION formula: '[TRIP/Duration]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/START_DATE formula: '[TRIP/Start Date]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/0j9rfNmHBAGe3asxsM formula: '[TRIP/Start Station Name]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/START_STATION_ID formula: '[TRIP/Start Station Id]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/END_DATE formula: '[TRIP/End Date]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/END_STATION_NAME formula: '[TRIP/End Station Name]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/END_STATION_ID formula: '[TRIP/End Station Id]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/BIKE_ID formula: '[TRIP/Bike Id]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/SUBSCRIPTION_TYPE formula: '[TRIP/Subscription Type]' - id: inode-MKXXT4nWWmGyzyQ6EUt9UH/ZIP_CODE formula: '[TRIP/Zip Code]' order: - inode-MKXXT4nWWmGyzyQ6EUt9UH/ID - inode-MKXXT4nWWmGyzyQ6EUt9UH/DURATION - inode-MKXXT4nWWmGyzyQ6EUt9UH/START_DATE - inode-MKXXT4nWWmGyzyQ6EUt9UH/0j9rfNmHBAGe3asxsM - inode-MKXXT4nWWmGyzyQ6EUt9UH/START_STATION_ID - inode-MKXXT4nWWmGyzyQ6EUt9UH/END_DATE - inode-MKXXT4nWWmGyzyQ6EUt9UH/END_STATION_NAME - inode-MKXXT4nWWmGyzyQ6EUt9UH/END_STATION_ID - inode-MKXXT4nWWmGyzyQ6EUt9UH/BIKE_ID - inode-MKXXT4nWWmGyzyQ6EUt9UH/SUBSCRIPTION_TYPE - inode-MKXXT4nWWmGyzyQ6EUt9UH/ZIP_CODE visibleAsSource: false - id: y7ryGHcFUR kind: line-chart source: elementId: PNRXIRgQM4 kind: table columns: - id: VtZnpdB15b formula: DateTrunc("week", [Start Date]) - id: EF8APValbi formula: Count([Id]) - id: 2WLh4iQ40I formula: '[TRIP/Id]' - id: H9YcRCi4W6 formula: '[TRIP/Duration]' - id: VHqxwcCHL4 formula: '[TRIP/Start Date]' - id: BPG5YnbSNc formula: '[TRIP/Start Station Name]' - id: 7lPvzgxog0 formula: '[TRIP/Start Station Id]' - id: I74lxFmT6H formula: '[TRIP/End Date]' - id: eahmnZ9s9s formula: '[TRIP/End Station Name]' - id: z6JOR2Uz26 formula: '[TRIP/End Station Id]' - id: Aq6xJL6CCk formula: '[TRIP/Bike Id]' - id: ibAW5RXaaa formula: '[TRIP/Subscription Type]' - id: ktwtctKQ26 formula: '[TRIP/Zip Code]' yAxis: columnIds: - EF8APValbi xAxis: columnId: VtZnpdB15b refMarks: - type: line axis: axis value: type: constant value: 1414825200000 line: style: dashed color: '#0a0a0a' annotation: visibility: shown - type: band axis: series value: type: column columnId: EF8APValbi func: min label: visibility: shown endValue: type: column columnId: EF8APValbi func: avg pages: - id: PGru1UPjhH name: Page 1 kind: workbook layout: | documentVersion: 2 ``` ## Representing charts with reference marks #### Chart with reference marks representation ```yaml ... id: y7ryGHcFUR kind: line-chart source: elementId: PNRXIRgQM4 kind: table columns: - id: VtZnpdB15b formula: DateTrunc("week", [Start Date]) - id: EF8APValbi formula: Count([Id]) - id: 2WLh4iQ40I formula: '[TRIP/Id]' - id: H9YcRCi4W6 formula: '[TRIP/Duration]' - id: VHqxwcCHL4 formula: '[TRIP/Start Date]' - id: BPG5YnbSNc formula: '[TRIP/Start Station Name]' - id: 7lPvzgxog0 formula: '[TRIP/Start Station Id]' - id: I74lxFmT6H formula: '[TRIP/End Date]' - id: eahmnZ9s9s formula: '[TRIP/End Station Name]' - id: z6JOR2Uz26 formula: '[TRIP/End Station Id]' - id: Aq6xJL6CCk formula: '[TRIP/Bike Id]' - id: ibAW5RXaaa formula: '[TRIP/Subscription Type]' - id: ktwtctKQ26 formula: '[TRIP/Zip Code]' yAxis: columnIds: - EF8APValbi xAxis: columnId: VtZnpdB15b refMarks: - type: line axis: axis value: type: constant value: 1414825200000 line: style: dashed color: '#0a0a0a' annotation: visibility: shown - type: band axis: series value: type: column columnId: EF8APValbi func: min label: visibility: shown endValue: type: column columnId: EF8APValbi func: avg ... ```