wds15

Results 47 issues of wds15

#### Summary: CRAN identified with their clang sanitiser tests (see here: https://cran.csiro.au/doc/manuals/r-patched/R-exts.html#Using-Address-Sanitizer) issues in one of my Stan models on CRAN. When tracing down the log file it appears that...

#### Summary: The dynamic HMC algorithm can be parallelized to run the forward and backward sweeps in independence. See for a description and a decent evaluation the thread on discourse:...

#### Summary: When we run the generated quantities facility we should allow for a threaded evaluation to speed things up. #### Description: As the draws from the posterior are independent...

#### Summary: Right now it is a matter of specifying appropriate compile time defines like `-DSTAN_THREADS` in order to switch threading support on. We should consider changing `stanc` to have...

I wanted to include an unused factor level for a fixed effect in the brms model, but that does not work, since drop.unused.levels is by default TRUE and there is...

feature
formula

CmdStan allows to pass the inverse mass matrix to the sampler. This is a very useful feature as it enables interesting schemes like - warmup a single chain with many...

efficiency
feature

For iterative modeling with larger models it can be very helpful if one can jump-start the warmup period of Stan. This is possible in the current Stan by using offset...

efficiency
feature

#### Summary: Importing runs from cmdstan which are exactly the same runs (two calls to cmdstan with the same seed and data, etc.) then one ends up getting numerical differences....

#### Summary: I am getting a structurally wrongly simulated posterior whenever I have multiple new group levels for a hierarchical model which I want to sample for.... at least for...

bug

#### Summary: The offsets don't work right in stan_gamm4. The example here is for a gaussian family, but it is particularly harmful in poisson regression. #### Description: Specifying an offset...