# Half of data is missing (black) in plotheatmap heatmap

**URL:** <https://help.galaxyproject.org/t/half-of-data-is-missing-black-in-plotheatmap-heatmap/1438>\
**Category:** Uncategorized\
**Created:** [May 30, 2019, 12:16am UTC](https://help.galaxyproject.org/t/half-of-data-is-missing-black-in-plotheatmap-heatmap/1438 "2019-05-30T00:16:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jamal\_Williams](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jamal_williams/32/619_2.png) [@Jamal\_Williams](https://help.galaxyproject.org/u/Jamal_Williams)\
**Post date:** [May 30, 2019, 12:16am UTC](https://help.galaxyproject.org/t/half-of-data-is-missing-black-in-plotheatmap-heatmap/1438/1 "2019-05-30T00:16:51Z")

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When creating a heatmap in plotheatmap, only genes from the -2kb to TSS are displayed, everything from TSS to 2kb is black:  
I used computematrix first but am not sure whats the problem.

 ![54%20PM](https://us1.discourse-cdn.com/flex020/uploads/galaxy/original/1X/3d8b0b1dc2d46275caa2b5e614efddd542050efd.png) ![08%20PM](https://us1.discourse-cdn.com/flex020/uploads/galaxy/original/1X/d30dfcc0d00e7db068a44e71e1844efb13179e74.png)