Aaron Jacobs
@atheriel.bsky.social
Software engineer building products at @posit.co. Occasional open-source #rstats work. Obscure Linux/ZFS stuff on the side.
Reposted by Aaron Jacobs
{otel} + #rstats is becoming a crazy partnership.
This project has driven me to use/write {promises} in ways that makes my 🧠 ache 😅. The reward is worth it!
See you at #PositConf2025 where I'll talk about this in more detail
This project has driven me to use/write {promises} in ways that makes my 🧠 ache 😅. The reward is worth it!
See you at #PositConf2025 where I'll talk about this in more detail
More #rstats + OpenTelemetry news: @schloerke.com finally got all of the async issues in {ellmer} and {shiny} sorted out and tracing now works!
Here's what combining {shiny} + {ellmer} + {httr2} + {mirai} + {otel} looks like today.
(All credit for the screenshots to @schloerke.com.)
Here's what combining {shiny} + {ellmer} + {httr2} + {mirai} + {otel} looks like today.
(All credit for the screenshots to @schloerke.com.)
September 10, 2025 at 7:13 PM
{otel} + #rstats is becoming a crazy partnership.
This project has driven me to use/write {promises} in ways that makes my 🧠 ache 😅. The reward is worth it!
See you at #PositConf2025 where I'll talk about this in more detail
This project has driven me to use/write {promises} in ways that makes my 🧠 ache 😅. The reward is worth it!
See you at #PositConf2025 where I'll talk about this in more detail
More #rstats + OpenTelemetry news: @schloerke.com finally got all of the async issues in {ellmer} and {shiny} sorted out and tracing now works!
Here's what combining {shiny} + {ellmer} + {httr2} + {mirai} + {otel} looks like today.
(All credit for the screenshots to @schloerke.com.)
Here's what combining {shiny} + {ellmer} + {httr2} + {mirai} + {otel} looks like today.
(All credit for the screenshots to @schloerke.com.)
September 10, 2025 at 7:07 PM
More #rstats + OpenTelemetry news: @schloerke.com finally got all of the async issues in {ellmer} and {shiny} sorted out and tracing now works!
Here's what combining {shiny} + {ellmer} + {httr2} + {mirai} + {otel} looks like today.
(All credit for the screenshots to @schloerke.com.)
Here's what combining {shiny} + {ellmer} + {httr2} + {mirai} + {otel} looks like today.
(All credit for the screenshots to @schloerke.com.)
The internals of {ellmer} are like the final boss of modern #rstats package codebases: S7, httr2, promises, and coro *everywhere*. It really shows how to push the limit of what can be done with R.
September 9, 2025 at 5:06 PM
The internals of {ellmer} are like the final boss of modern #rstats package codebases: S7, httr2, promises, and coro *everywhere*. It really shows how to push the limit of what can be done with R.
More #rstats OpenTelemetry tidbits: I've revived the PR that adds instrumentation to the {httr2} package.
Here is what is looks like to run {httr2}'s own test suite while looked up to Logfire:
Here is what is looks like to run {httr2}'s own test suite while looked up to Logfire:
September 8, 2025 at 5:44 PM
More #rstats OpenTelemetry tidbits: I've revived the PR that adds instrumentation to the {httr2} package.
Here is what is looks like to run {httr2}'s own test suite while looked up to Logfire:
Here is what is looks like to run {httr2}'s own test suite while looked up to Logfire:
There's been a big push at Posit this summer to get high-quality OpenTelemetry support out to the #rstats community (a longstanding dream of mine).
I think {mirai} is the first package release to showcase this work, and as per usual with @shikokuchuo.net, it was done in record time!
I think {mirai} is the first package release to showcase this work, and as per usual with @shikokuchuo.net, it was done in record time!
tidyverse blog: mirai 2.5.0
www.tidyverse.org/blog/2025/09...
This milestone release delivers enhanced observability through OpenTelemetry, reproducible parallel RNG, and key user interface improvements.
We’ve also packed in twice as many changes as usual!
#Rstats #tidyverse
www.tidyverse.org/blog/2025/09...
This milestone release delivers enhanced observability through OpenTelemetry, reproducible parallel RNG, and key user interface improvements.
We’ve also packed in twice as many changes as usual!
#Rstats #tidyverse
mirai 2.5.0
mirai - minimalist async evaluation framework for R - brings production-grade parallel and distributed computing to the ecosystem.
www.tidyverse.org
September 5, 2025 at 6:32 PM
There's been a big push at Posit this summer to get high-quality OpenTelemetry support out to the #rstats community (a longstanding dream of mine).
I think {mirai} is the first package release to showcase this work, and as per usual with @shikokuchuo.net, it was done in record time!
I think {mirai} is the first package release to showcase this work, and as per usual with @shikokuchuo.net, it was done in record time!
In the last few months I've worked a fair bit in Typescript building "VS Code" extensions for #Positron. It's my first time using that language or the extension APIs, and I have to say that the teams at Microsoft have done some incredible work on both.
September 5, 2025 at 3:57 PM
In the last few months I've worked a fair bit in Typescript building "VS Code" extensions for #Positron. It's my first time using that language or the extension APIs, and I have to say that the teams at Microsoft have done some incredible work on both.
Reposted by Aaron Jacobs
odbc 1.6.2 is now on #rstats CRAN! A good few QOL improvements, especially for Databricks and Snowflake users: github.com/r-dbi/odbc/r...
Release odbc 1.6.2 · r-dbi/odbc
Fix hang when parsing exceptionally long database errors (#916).
Fix retrieving multiple result sets from parametrized queries in cases when some parameters yield empty results (#927).
Databric...
github.com
August 29, 2025 at 1:22 PM
odbc 1.6.2 is now on #rstats CRAN! A good few QOL improvements, especially for Databricks and Snowflake users: github.com/r-dbi/odbc/r...
Reposted by Aaron Jacobs
Introducing Databot: an AI assistant for exploratory data analysis in #Python and #RStats!
A research preview in Positron, Databot is a tireless pair programmer to help you explore data.
Learn more about this tool and our philosophy behind it:
🤖 posit.co/blog/introdu...
⚠️ posit.co/blog/databot...
A research preview in Positron, Databot is a tireless pair programmer to help you explore data.
Learn more about this tool and our philosophy behind it:
🤖 posit.co/blog/introdu...
⚠️ posit.co/blog/databot...
August 29, 2025 at 2:03 PM
Introducing Databot: an AI assistant for exploratory data analysis in #Python and #RStats!
A research preview in Positron, Databot is a tireless pair programmer to help you explore data.
Learn more about this tool and our philosophy behind it:
🤖 posit.co/blog/introdu...
⚠️ posit.co/blog/databot...
A research preview in Positron, Databot is a tireless pair programmer to help you explore data.
Learn more about this tool and our philosophy behind it:
🤖 posit.co/blog/introdu...
⚠️ posit.co/blog/databot...
Reposted by Aaron Jacobs
Announcing the Posit Publisher VS Code extension!
This new tool makes it easy for #RStats and #Python users to deploy data science content, like Shiny apps, Quarto docs, and Jupyter notebooks, from #VSCode and Positron directly to Posit Connect.
Learn more and install open-vsx.org/extension/po...
This new tool makes it easy for #RStats and #Python users to deploy data science content, like Shiny apps, Quarto docs, and Jupyter notebooks, from #VSCode and Positron directly to Posit Connect.
Learn more and install open-vsx.org/extension/po...
August 28, 2025 at 6:07 PM
Announcing the Posit Publisher VS Code extension!
This new tool makes it easy for #RStats and #Python users to deploy data science content, like Shiny apps, Quarto docs, and Jupyter notebooks, from #VSCode and Positron directly to Posit Connect.
Learn more and install open-vsx.org/extension/po...
This new tool makes it easy for #RStats and #Python users to deploy data science content, like Shiny apps, Quarto docs, and Jupyter notebooks, from #VSCode and Positron directly to Posit Connect.
Learn more and install open-vsx.org/extension/po...
Reposted by Aaron Jacobs
🐘 ellmer 🐘 makes it easy and fun to use LLMs from #rstats, and 0.3.0 is out now. Read about the new streamlined chat() function, improvements to tool specifications, and more at www.tidyverse.org/blog/2025/07....
ellmer 0.3.0
The newest version of ellmer introduces a simpler `chat()` interface that can works with any provider, a bunch of improvements to tool calling, and a handful of smaller quality of life improvements.
www.tidyverse.org
July 25, 2025 at 1:25 PM
🐘 ellmer 🐘 makes it easy and fun to use LLMs from #rstats, and 0.3.0 is out now. Read about the new streamlined chat() function, improvements to tool specifications, and more at www.tidyverse.org/blog/2025/07....
We're having a hard time figuring out the correct (minimal-permission) API scope for using Vertex AI from the #rstats {ellmer} package. If you have access to Vertex (we don't) and want to test, here is where to start:
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
Update API endpoint for Vertex AI, use working scope for auth by netique · Pull Request #598 · tidyverse/ellmer
github.com
July 1, 2025 at 2:56 PM
We're having a hard time figuring out the correct (minimal-permission) API scope for using Vertex AI from the #rstats {ellmer} package. If you have access to Vertex (we don't) and want to test, here is where to start:
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
github.com/tidyverse/el...
Reposted by Aaron Jacobs
Ever wonder how the #tidyverse came to be? 🤔
#TheTestSet's first episode features @hadley.nz on his accidental empire of #RStats packages, bear encounters, and more!
Stream it at thetestset.co, Spotify, or Apple Podcasts.
#DataAnalytics #PodcastLaunch
#TheTestSet's first episode features @hadley.nz on his accidental empire of #RStats packages, bear encounters, and more!
Stream it at thetestset.co, Spotify, or Apple Podcasts.
#DataAnalytics #PodcastLaunch
July 1, 2025 at 2:33 PM
Ever wonder how the #tidyverse came to be? 🤔
#TheTestSet's first episode features @hadley.nz on his accidental empire of #RStats packages, bear encounters, and more!
Stream it at thetestset.co, Spotify, or Apple Podcasts.
#DataAnalytics #PodcastLaunch
#TheTestSet's first episode features @hadley.nz on his accidental empire of #RStats packages, bear encounters, and more!
Stream it at thetestset.co, Spotify, or Apple Podcasts.
#DataAnalytics #PodcastLaunch
Small #rstats improvement for folks interested in RAG with {ragnar} (and just in time for their conference): github.com/tidyverse/ra...
Add support for using embedding models from Databricks by atheriel · Pull Request #45 · tidyverse/ragnar
Databricks hosts a couple of dedicated text embedding models through their Foundation Models API. This commit introduces embed_databricks() to give ragnar users access to them.
Note that this is a ...
github.com
June 9, 2025 at 9:32 PM
Small #rstats improvement for folks interested in RAG with {ragnar} (and just in time for their conference): github.com/tidyverse/ra...
For those following the #rstats {ellmer} package: I got the chat_databricks() and chat_snowflake() providers working with tool calling this past week. IMHO this means these providers are no longer toys: they can be used with RAG (via {ragnar}) and other complex tasks like @simonpcouch.com's {btw}.
June 8, 2025 at 10:45 PM
For those following the #rstats {ellmer} package: I got the chat_databricks() and chat_snowflake() providers working with tool calling this past week. IMHO this means these providers are no longer toys: they can be used with RAG (via {ragnar}) and other complex tasks like @simonpcouch.com's {btw}.
Second pass: traces from a RAG in Langfuse constructed using both #rstats {ragnar} and {ellmer}. This shows a tool call out to a text embedding model as well as a general-purpose one, which is a bit more realistic (and interesting).
June 8, 2025 at 10:31 PM
Second pass: traces from a RAG in Langfuse constructed using both #rstats {ragnar} and {ellmer}. This shows a tool call out to a text embedding model as well as a general-purpose one, which is a bit more realistic (and interesting).
Currently wiring up a simple #rstats ellmer chatbot to send traces to Langfuse. These LLM observability platforms have some pretty slick UI:
June 8, 2025 at 5:13 PM
Currently wiring up a simple #rstats ellmer chatbot to send traces to Langfuse. These LLM observability platforms have some pretty slick UI:
Reposted by Aaron Jacobs
Want to easily use LLMs from R? ellmer 0.2.0 provides:
• Batch & parallel processing
• A universal parameter interface
• Cost tracking
• Support for Mistral, Hugging Face, & Portkey
And much more! Read all about it at: www.tidyverse.org/blog/2025/05... #rstats
• Batch & parallel processing
• A universal parameter interface
• Cost tracking
• Support for Mistral, Hugging Face, & Portkey
And much more! Read all about it at: www.tidyverse.org/blog/2025/05... #rstats
ellmer 0.2.0
ellmer 0.2.0 lands with a swag of upgrades: Garrick Aden‑Buie joins the team, we make a couple of breaking changes, and add serious scale with `parallel_chat()` and `batch_chat()`. A new `params()` ...
www.tidyverse.org
June 3, 2025 at 4:34 PM
Want to easily use LLMs from R? ellmer 0.2.0 provides:
• Batch & parallel processing
• A universal parameter interface
• Cost tracking
• Support for Mistral, Hugging Face, & Portkey
And much more! Read all about it at: www.tidyverse.org/blog/2025/05... #rstats
• Batch & parallel processing
• A universal parameter interface
• Cost tracking
• Support for Mistral, Hugging Face, & Portkey
And much more! Read all about it at: www.tidyverse.org/blog/2025/05... #rstats
Thanks to some great work from @gaborcsardi.org my longstanding dream of bringing high-quality OpenTelemetry tooling to #rstats is starting to get off the ground.
June 4, 2025 at 9:19 PM
Thanks to some great work from @gaborcsardi.org my longstanding dream of bringing high-quality OpenTelemetry tooling to #rstats is starting to get off the ground.
Reposted by Aaron Jacobs
New in #rstats R4.5.0: `parallel::makeCluster(6, "MIRAI")` creates a parallel mirai cluster with 6 nodes. Yes that's right, mirai is now officially a base R cluster type!
mirai.r-lib.org
Result of work from the R Project Sprint in Warwick 2023 in collaboration with Luke Tierney (R Core).
mirai.r-lib.org
Result of work from the R Project Sprint in Warwick 2023 in collaboration with Luke Tierney (R Core).
April 14, 2025 at 8:08 PM
New in #rstats R4.5.0: `parallel::makeCluster(6, "MIRAI")` creates a parallel mirai cluster with 6 nodes. Yes that's right, mirai is now officially a base R cluster type!
mirai.r-lib.org
Result of work from the R Project Sprint in Warwick 2023 in collaboration with Luke Tierney (R Core).
mirai.r-lib.org
Result of work from the R Project Sprint in Warwick 2023 in collaboration with Luke Tierney (R Core).
Reposted by Aaron Jacobs
Introducing acquaint, an R package that turns your R sessions into a Model Context Protocol (MCP) server. This allows MCP-enabled tools like Claude Desktop and Claude Code to run #rstats code _in your active R sessions_ to explore objects, read documentation, etc.
posit-dev.github.io/acquaint/
posit-dev.github.io/acquaint/
May 28, 2025 at 3:43 PM
Introducing acquaint, an R package that turns your R sessions into a Model Context Protocol (MCP) server. This allows MCP-enabled tools like Claude Desktop and Claude Code to run #rstats code _in your active R sessions_ to explore objects, read documentation, etc.
posit-dev.github.io/acquaint/
posit-dev.github.io/acquaint/
Does it still count as conference-driven development if you're not actually going to the conference?
May 29, 2025 at 9:11 PM
Does it still count as conference-driven development if you're not actually going to the conference?
Both Snowflake and Databricks have made improvements to their LLM APIs in recent months (particularly around tool calling and structured outputs). I'm hoping to surface many of these to #rstats users in the next {ellmer} release.
May 29, 2025 at 5:59 PM
Both Snowflake and Databricks have made improvements to their LLM APIs in recent months (particularly around tool calling and structured outputs). I'm hoping to surface many of these to #rstats users in the next {ellmer} release.
Reposted by Aaron Jacobs
Me and a lot of people from all over the world talk about just how dead R is; like so dead. www.linkedin.com/posts/jeremy...
#rstats #thewideworldofr #datascience | Jeremy Allen | 132 comments
R is so dead that there are thousands of economists, actuaries, statisticians, bioinformaticists, epidemiologists, biologists, ecologists, geologists, geographers, psychologists, demographers, sociolo...
www.linkedin.com
May 27, 2025 at 12:07 AM
Me and a lot of people from all over the world talk about just how dead R is; like so dead. www.linkedin.com/posts/jeremy...
Reposted by Aaron Jacobs
✨Use llms from #rstats with ellmer ✨Version 0.2.0 is on CRAN now. No blog post yet because I'm about to go on vacation, but in the meantime you can check out the release notes: github.com/tidyverse/el....
github.com
May 18, 2025 at 2:13 PM
✨Use llms from #rstats with ellmer ✨Version 0.2.0 is on CRAN now. No blog post yet because I'm about to go on vacation, but in the meantime you can check out the release notes: github.com/tidyverse/el....