# Bambi: Truncated Response Variables

**URL:** <https://discourse.pymc.io/t/bambi-truncated-response-variables/12441>\
**Category:** version agnostic\
**Tags:** bambi\
**Created:** [July 3, 2023, 9:04pm UTC](https://discourse.pymc.io/t/bambi-truncated-response-variables/12441 "2023-07-03T21:04:34Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![zweli](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/zweli/32/4089_2.png) [@zweli](https://discourse.pymc.io/u/zweli)\
**Post date:** [July 3, 2023, 9:04pm UTC](https://discourse.pymc.io/t/bambi-truncated-response-variables/12441/1 "2023-07-03T21:04:34Z")

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I know how to set [truncated priors](https://bambinos.github.io/bambi/notebooks/getting_started.html#Custom-Prior) in Bambi. However, how would I set a truncated response variable?

@tcapretto is there a way to do this? I appreciate your kind attention.

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**Author:** ![tcapretto](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/tcapretto/32/4902_2.png) [@tcapretto](https://discourse.pymc.io/u/tcapretto)\
**Post date:** [July 6, 2023, 12:50pm UTC](https://discourse.pymc.io/t/bambi-truncated-response-variables/12441/2 "2023-07-06T12:50:42Z")

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Hello!

It’s not possible _right now_ unless you implemented a custom family. However, it’s the next thing I have on my to-do list. I may have good news in a couple of weeks! 😃

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**Author:** ![zweli](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/zweli/32/4089_2.png) [@zweli](https://discourse.pymc.io/u/zweli)\
**Post date:** [July 6, 2023, 12:57pm UTC](https://discourse.pymc.io/t/bambi-truncated-response-variables/12441/3 "2023-07-06T12:57:07Z")

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That’s great news. Thanks for the update!

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**Author:** ![tcapretto](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/tcapretto/32/4902_2.png) [@tcapretto](https://discourse.pymc.io/u/tcapretto)\
**Post date:** [July 11, 2023, 10:44pm UTC](https://discourse.pymc.io/t/bambi-truncated-response-variables/12441/4 "2023-07-11T22:44:21Z")

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Censored models are coming! [Implement censored families by tomicapretto · Pull Request #697 · bambinos/bambi · GitHub](https://github.com/bambinos/bambi/pull/697)

Truncated should follow naturally after that

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<div class="post-metadata">

**Author:** ![zweli](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/zweli/32/4089_2.png) [@zweli](https://discourse.pymc.io/u/zweli)\
**Post date:** [July 11, 2023, 11:41pm UTC](https://discourse.pymc.io/t/bambi-truncated-response-variables/12441/5 "2023-07-11T23:41:53Z")

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That’s very cool. Bambi is definitely catching up to Brms! Working on a hurdle model that will definitely benefit from this function!