# Multiple membership models when replicates belong to different numbers of groups

**URL:** <https://discourse.mc-stan.org/t/multiple-membership-models-when-replicates-belong-to-different-numbers-of-groups/11643>\
**Category:** brms\
**Created:** [October 29, 2019, 9:51pm UTC](https://discourse.mc-stan.org/t/multiple-membership-models-when-replicates-belong-to-different-numbers-of-groups/11643 "2019-10-29T21:51:42Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![paul.buerkner](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/paul.buerkner/32/3303_2.png) [@paul.buerkner](https://discourse.mc-stan.org/u/paul.buerkner)\
**Post date:** [October 31, 2019, 8:28am UTC](https://discourse.mc-stan.org/t/multiple-membership-models-when-replicates-belong-to-different-numbers-of-groups/11643/4 "2019-10-31T08:28:24Z")

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Let me check, what zero weights actually imply. Perhaps there is a bug in that regard.

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