# Test data giving negative R sq

**URL:** <https://discourse.pymc.io/t/test-data-giving-negative-r-sq/14843>\
**Category:** General\
**Tags:** modeling, pymc-marketing\
**Created:** [July 24, 2024, 11:13pm UTC](https://discourse.pymc.io/t/test-data-giving-negative-r-sq/14843 "2024-07-24T23:13:40Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![cluhmann](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/cluhmann/32/3083_2.png) [@cluhmann](https://discourse.pymc.io/u/cluhmann)\
**Post date:** [July 25, 2024, 12:18am UTC](https://discourse.pymc.io/t/test-data-giving-negative-r-sq/14843/2 "2024-07-25T00:18:43Z")

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For your second question, see [this answer](https://discourse.pymc.io/t/mmm-allocate-budget-to-maximize-response-generating-weird-decimal-places-results/14828/3).

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