Choose a data in the Data catalogue and add it into your workspace (refer to : How to do a research in the Explore Data Catalogue?)

Click on the cog button and click on Display histogram option.

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A new Frequency Histogram portlet is now displayed into your workspace. By interacting with the chart you can display the exact value of each bin and zoom in/out the chart.

You have the possibility to save the chart by clicking on the save button in the chart bar.