I recently updated my R version to the latest including all of the packages. After the update, the LOO function does not work anymore. I have saved a workspace with estimated models and previously I was able to estimate both LOO and WAIC for all of the models but now I get the error for one model if I try to run LOO on the fitted brms object. The error is the following: “Error: Can’t mix NA and not NA values in ‘r_eff’.”.
I fitted the model again, but the problem remains.
Please also provide the following information in addition to your question:
- Operating System: Windows 10
- brms Version: 2.9.0