SUG on multi-logit regression is out-of-date #500

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1. avehtari commented on Aug 12, 2024

   

   avehtari

   on Aug 12, 2024

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   Pinging @bob-carpenter who asked to point out doc issues he could work on in the near future
2. bob-carpenter

   self-assigned this

   on Aug 12, 2024
3. bob-carpenter commented on Aug 12, 2024

   

   bob-carpenter

   on Aug 12, 2024

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   Thanks. I'll fix it.
4. bob-carpenter commented on Aug 12, 2024

   

   bob-carpenter

   on Aug 12, 2024

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   categorical_logit is not yet vectorized to allow this. The available signatures are as follows:

   ...
   Available signatures:
   (array[] int, vector) => real
     The second argument must be vector but got matrix
   (int, vector) => real
     The first argument must be int but got array[] int
   

   So we can vectorize the outcomes, but there's no way to give them different predictions as this example requires.

   I am closing this issue. I opened an issue in the math repo to add the appropriate vectorization signatures: stan-dev/math#3102
5. bob-carpenter

   closed this as completedon Aug 12, 2024