# Stan Meeting Sept 20, 2018

**URL:** <https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784>\
**Category:** General\
**Created:** [September 27, 2018, 2:29pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784 "2018-09-27T14:29:20Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![breckbaldwin](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/breckbaldwin/32/9052_2.png) [@breckbaldwin](https://discourse.mc-stan.org/u/breckbaldwin)\
**Post date:** [September 27, 2018, 2:29pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784/1 "2018-09-27T14:29:20Z")

</div>

Matthijs: Speeding up Stan and working on poster for probabilistic programming conference.

Lauren: Survey work, working with raking algo, trying to figure out working with that.

Charles: Sorting out auto diff bug

Breck: Admin, had first Stan Governing Body meeting. Getting ready for NumFOCUS summit, our fiscal sponsor organization for Stan.

Ben Goodrich: Still trying to get Cran to approve Stan. Working with RStudio to get Stan running inside 1GB of memory.

Sean Talts: Helping Mitzi with stacker, getting amazon credits for test server, working on GPU PR.

Paul: Jonah visiting, talking about the R packages. Working on case study on time series models.

Brian: Nothing new to report

Bob: Pull requests, working on new book. Based on user manual. Working on making that code work. RCCP is seg faulting.

Mitzi: Working on Stan book, moving stuff to bookdown. Reviewed pull requests. Keeping an eye on Daniel Lee makefile PR.

Aki: Lots of teaching.

General discussion:

Mitzi/Sean talking about dev issues with docker files.

We should extracting useful features from ARM package.

Should we get a catchbox (microphone that you can throw around in class rooms/conferences. StanCon Helsinki had one)? Yes, Ben wants it for teaching.

Charles: Solving an ODE, what are for increasing dimensions and number of parameters. Seeking input on formalizing complexity analysis.

Matthijs: Asking about autodiff refactor of Bob. Bob responded saying he was just experimenting and reporting on discourse. Might be a big deal for matrix operations. No algo breakthroughs.

---

<div class="post-metadata">

**Author:** ![hammer](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/hammer/32/2935_2.png) [@hammer](https://discourse.mc-stan.org/u/hammer)\
**Post date:** [September 27, 2018, 5:39pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784/2 "2018-09-27T17:39:43Z")

</div>

> [@breckbaldwin](#):
>
> Mitzi: Working on Stan book, moving stuff to bookdown.

Any chance the book source is/will be on GitHub?

---

<div class="post-metadata">

**Author:** ![avehtari](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/avehtari/32/5935_2.png) [@avehtari](https://discourse.mc-stan.org/u/avehtari)\
**Post date:** [September 27, 2018, 7:57pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784/3 "2018-09-27T19:57:51Z")

</div>

> [@hammer](#):
>
> Any chance the book source is/will be on GitHub?

100% chance. It’s there already.

---

<div class="post-metadata">

**Author:** ![hammer](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/hammer/32/2935_2.png) [@hammer](https://discourse.mc-stan.org/u/hammer)\
**Post date:** [September 27, 2018, 8:20pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784/4 "2018-09-27T20:20:34Z")

</div>

Does “book” then mean [https://github.com/stan-dev/stan/tree/develop/src/docs/reference-manual](https://github.com/stan-dev/stan/tree/develop/src/docs/reference-manual)?

---

<div class="post-metadata">

**Author:** ![avehtari](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/avehtari/32/5935_2.png) [@avehtari](https://discourse.mc-stan.org/u/avehtari)\
**Post date:** [September 27, 2018, 8:49pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784/5 "2018-09-27T20:49:46Z")

</div>

See more info on “Stan book” here [Move user’s guide to new repo?](https://discourse.mc-stan.org/t/move-users-guide-to-new-repo/5733)

---

<div class="post-metadata">

**Author:** ![bbbales2](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/bbbales2/32/77_2.png) [@bbbales2](https://discourse.mc-stan.org/u/bbbales2)\
**Post date:** [September 28, 2018, 11:45pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784/6 "2018-09-28T23:45:09Z")

</div>

> [@breckbaldwin](#):
>
> Charles: Solving an ODE, what are for increasing dimensions and number of parameters. Seeking input on formalizing complexity analysis.

@charlesm93 I am curious. Make a post or @ me. I almost definitely have an opinion. Whether or not it’s useful is another question.

> [@breckbaldwin](#):
>
> Should we get a catchbox… Yes, Ben wants it for teaching.

Other Ben approves as well

---

<div class="post-metadata">

**Author:** ![mitzimorris](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/mitzimorris/32/29_2.png) [@mitzimorris](https://discourse.mc-stan.org/u/mitzimorris)\
**Post date:** [September 29, 2018, 3:06pm UTC](https://discourse.mc-stan.org/t/stan-meeting-sept-20-2018/5784/7 "2018-09-29T15:06:52Z")

</div>

> [@hammer](#):
>
> Does “book” then mean [https://github.com/stan-dev/stan/tree/develop/src/docs/reference-manual](https://github.com/stan-dev/stan/tree/develop/src/docs/reference-manual)?

no, it’s currently on a branch, in directory `src/docs/users-guide` here:  
“[https://github.com/stan-dev/stan/tree/feature/2563-users-guide-html/src/docs/users-guide](https://github.com/stan-dev/stan/tree/feature/2563-users-guide-html/src/docs/users-guide)”

see discussion Aki mentioned for more info