> For the complete documentation index, see [llms.txt](https://ucsc-xena.gitbook.io/project/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ucsc-xena.gitbook.io/project/how-do-i/how-do-i-remove-null-data-gray-lines-from-view.md).

# How do I remove null data (gray lines) from view?

Sometimes not all samples in a dataset have data. This can happen for a variety of reasons, such as a particular patient's sample did not undergo one or more analyses. In this case, we use gray, or 'null' to show that there is no data. 

To remove null data use the 'Remove samples with nulls' shortcut in the filter menu.

## Example

![](/files/-MZocxKVYHRC5FZHXBGc)