Histogram reports

concept brazil Updated Sep 10, 2026 4 min read c_CreatingHistograms.md
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Histograms group numbers in a data set into ranges. The data used in a histogram is continuous data. Continuous data is measured whereas discrete data, which is used in bar charts, is counted.

Note: This topic is about creating Core UI reports, not Platform Analytics data visualizations. You can still create Core UI reports in the Platform Analytics experience, depending on how your instance is configured. For more information, see Create a Core UI report.

For example, a histogram can show the pattern of P1 incidents logged over a four-week period after a product release. For the first week after the product was released, P1 incidents are low because users do not really understand the product enough to use it. In the second week, more users start working with the product and P1 issues increased. In the third week, P1 issues increase even more as more users began working with the product. In the fourth week, P1 issues stay the same as the third week. The information suggests that it is not necessary to increase support staff until the third week after a product is released.

Note: When accessibility is enabled, this visualization includes a report that screen readers can interpret. For more information, see Enabling accessibility features.

[Omitted image "histo-report-ex.png"] Alt text: Histogram Report example

Parent Topic:Core UI Report types

Create a histogram report

Histograms group numbers in a continuous data set into ranges.

Before you begin

Roles required: itil, report_user, report_group, report_global, report_admin, or admin. To create a meaningful report, you must have the right to access the data you want to report on.

About this task

Note: This topic is about creating Core UI reports, not Platform Analytics data visualizations. You can still create Core UI reports in the Platform Analytics experience, depending on how your instance is configured. For more information, see Create a Core UI report.

Procedure

  1. Open the Platform Analytics Data visualization library and select Create data visualization, then select Core UI in the modal that opens.

    The com.snc.par.coreui.report_create.enabled system property must be true.

  2. On the Data tab, give the report a name that reflects the information being grouped.

  3. Select the applicable source for the report.

Data source

Also called a report source, a data source is a table with filters applied to provide a single source of information for all users. For more information, see Report sources.Note: If you select a data source used by existing reports, a notification prompts you to view them.

Table

The raw data from a table with no filters applied. When you select a table, its short description appears below the table name.For trend reporting, you can also select a remote table, which aggregates, in memory, data retrieved from an external source. Then select a Trend by field option to aggregate its data. To learn more about remote tables, see Retrieving external data using remote tables and scripts.

External import

Choose an existing imported report source, or select the Upload icon ([Omitted image "upload-icon.png"] Alt text: Upload icon) to import a new file. See Create a Core UI report from an imported Microsoft Excel document.

MetricBase

MetricBase enables you to collect, retain, analyze, and visualize custom time series data on the ServiceNow AI Platform. For more information, see MetricBase.

4. On the **Type** tab, enter **Histogram** in the filter, select the report type, and click **Next**.
The application shows a preliminary version of the report. To view the updated report at any time, select **Run**.
  1. On the Configure tab, fill in the following fields and select Next.

Field

Description

Configure function field

Configure fields based on calculation of multiple inputs including arithmetic functions. For more information, see Report on function fields. Function field results are calculated when the report is run. You can use the results for aggregations and grouping. You have to save the report before you can configure function fields.Configured function fields appear in the Group by and Additional group by lists after you save the report.

Measured by

Select a field to report against. The values from this field appear on the X axis of the histogram and determine the width of the bars. Select the info icon [Omitted image "icon-info.png"] for a description of the selected field.

6. To limit the information displayed in the report, select the filter icon \(\[Omitted image "List\_FilterIcon.png"\] Alt text: Filter icon\) and specify conditions to filter the report data.
To learn how to construct conditions, see [Condition builder](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/platform-user-interface/c_ConditionBuilder.md).

**Note:** In aggregated and list reports, language-dependent filter conditions may return zero results on localized instances.
  1. Select Save to continue editing the visualization, or Save and close to return to the Analytics Overview main screen.

What to do next

  • Select the Report info icon ([Omitted image "Form_ReferenceLookupIcon.png"] Alt text: Info icon) and add a description of the report.
  • Select the sharing icon ([Omitted image "ShareIcon.png"] Alt text: Sharing icon) to open the Sharing menu. On this menu, you can add the report to a dashboard, export the report to PDF, publish the report to the web, and set visibility and schedules.
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