> For the complete documentation index, see [llms.txt](https://docs-v3.toucantoco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-v3.toucantoco.com/data-management-in-datahub/datasets-in-toucan/preparing-data/overview-of-youprep-tm/filter/top-n-rows.md). # Top N rows The Top N rows step allows you get the top N rows of your data based on value column to be ranked. The top can be performed by group if specified ### Step parameters * `Get top...`**\*(int)**: specify the number of top rows to retain * `Sort column...`**\*(string)**: the ranking will be based on this column (so its values must be sortable) * `Sort order...`**\*\["asc", "desc"]**: whether the you want the above column to e sorted on ascending (`asc`) or descending (`desc`) order * `Group by...` **(array)**: if you want to return a top by group, you can select one or several columns that will be used to constitute unique groups ### Example **Input**

Filter - Top N rows input

**Configuration** ```json { "limit": 5, "rank_on": "salary", "sort": "desc" "group_by": [] } ``` **Output**

Filter - Top N rows output

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