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mzloteanu.bsky.social
#statstab #625 {lavinteract}: Post-Estimation Utilities for 'lavaan' Fitted Models

Thoughts: "Companion toolbox for structural equation models fitted with 'lavaan'"

#lavaan #sem #modelselection #modelfit #r2 #FDR #VIF #latent #rstats #r

cran.r-project.org/web/packages...
Help for package lavinteract
cran.r-project.org
September 25, 2026 at 5:41 PM
cagejohnson75.bsky.social
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November 28, 2024 at 3:25 AM
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April 1, 2025 at 8:21 PM
aecoppock.bsky.social
Thank you Cyrus!

The tidyverse-wide coordination on tidy(modelfit) and glance(modelfit) pays so many dividends- thank you library(broom)!

[also @vincentab.bsky.social writes the most beautiful r packages, am in frequent awe of his work especially modelsummary and marginaleffects]
cdsamii.bsky.social Cyrus Samii @cdsamii.bsky.social · Aug 29
The seamless interface between estimatr and modelsummary in R is such an efficiency boost, not to mention the brilliant performance of each respective package.

@vincentab.bsky.social @aecoppock.bsky.social @graemeblair.bsky.social @macartan.bsky.social bravo and many thanks!
August 29, 2024 at 5:58 PM
kbkarlson.bsky.social
Modelfit, back to the 80s

#sociology
October 8, 2025 at 5:34 AM
mzloteanu.bsky.social
#statstab #496 Posterior predictive checks {performance}

Thoughts: Idk why more frequentist don't use ppc for their models. I can diagnose so many issues visually this way.

#error #posterior #ppc #modelfit #diagnostics #model #r #rstats #easystats

easystats.github.io/performance/...
Posterior predictive checks — check_predictions
Posterior predictive checks mean "simulating replicated data under the fitted model and then comparing these to the observed data" (Gelman and Hill, 2007, p. 158). Posterior predictive checks can be u...
easystats.github.io
March 2, 2026 at 7:27 PM
mzloteanu.bsky.social
#statstab #464 Plotting p-check interaction {brms}

Thoughts: Annoyingly #brms doesn't natively allow plotting for interactions (that I know of). The forum has a solution.

#ppc #posterior #bayesian #modelfit #diagnostic #rstats #r #stan

discourse.mc-stan.org/t/plotting-p...
Plotting pp_check interactions
I am trying to model ordinal data with an interaction of two predictors. However, I have issues with plotting interactions and individual data with the BRMS functions. My model is of the type ratin...
discourse.mc-stan.org
November 20, 2025 at 8:15 PM
rylietm.bsky.social
I will make a more formal post soon probably maybe.
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Streaming had ups and downs, numbers fluctuate.
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NEW MODELFIT. RIG UPDATE. MODEL UPDATE AND GIVEAWAYS!
DEC 4
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November 25, 2024 at 7:17 PM
wolframresearch.bsky.social
writings.stephenwolfram.com/2026/06/laun...
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit au...
writings.stephenwolfram.com
July 13, 2026 at 5:05 PM
mzloteanu.bsky.social
#statstab #264 When estimating a treatment effect with a cluster design, you need to include varying slopes, even if the fit gives warning messages

Thoughts: Warnings are scary ⚠️ Bad model are scarier 👹

#lmer #modelfit #mixedeffects #r #randomslopes

statmodeling.stat.columbia.edu/2025/01/23/s...
When estimating a treatment effect with a cluster design, you need to include varying slopes, even if the fit gives warning messages. | Statistical Modeling, Causal Inference, and Social Science
statmodeling.stat.columbia.edu
January 23, 2025 at 4:11 PM
wolframresearch.bsky.social
writings.stephenwolfram.com/2026/06/laun...
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
August 20, 2026 at 5:08 PM
wolframresearch.bsky.social
writings.stephenwolfram.com/2026/06/laun...
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
July 23, 2026 at 5:32 PM
wolframresearch.bsky.social
writings.stephenwolfram.com/2026/06/laun...
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit au...
writings.stephenwolfram.com
July 18, 2026 at 2:43 PM
hackernewsbot.bsky.social
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More | Discussion
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
June 17, 2026 at 12:00 AM
news.karthihegde.dev
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More
Discussion | hackernews | Author: alok-g
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in...
writings.stephenwolfram.com
June 16, 2026 at 11:47 PM
betterhn50.e-work.xyz
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More https://writings.stephenwolfram.com/2026/06/launching-version-15-of-wolfram-language-mathematica-built-in-useful-ai-lots-of-new-core-functionality/ (https://news.ycombinator.com/item?id=48563609)
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
June 17, 2026 at 1:28 AM
hn-frontpage-bot.bsky.social
Wolfram Language Version 15 launches with deep AI integration, including a built-in AI Assistant, enhanced notebook infrastructure, and new symbolic tools for categorical data, music, and orbits. It also adds advanced matrix decompositions and GPU-accelerated computing.
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More (112)
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
news.ycombinator.com
June 17, 2026 at 4:08 AM
hn100.atproto.rocks
Wolfram Language and Mathematica version 15
https://writings.stephenwolfram.com/2026/06/launching-version-15-of-wolfram-language-mathematica-built-in-useful-ai-lots-of-new-core-functionality/

https://news.ycombinator.com/item?id=48563609
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
June 17, 2026 at 8:00 AM
hn100.atproto.rocks
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More
https://writings.stephenwolfram.com/2026/06/launching-version-15-of-wolfram-language-mathematica-built-in-useful-ai-lots-of-new-core-functionality/

https://news.ycombinator.com/item?id=48563609
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
June 17, 2026 at 3:15 AM
betterhn20.e-work.xyz
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More https://writings.stephenwolfram.com/2026/06/launching-version-15-of-wolfram-language-mathematica-built-in-useful-ai-lots-of-new-core-functionality/ (https://news.ycombinator.com/item?id=48563609)
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
June 17, 2026 at 12:27 AM
hackernewsrobot.bsky.social
Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in th
writings.stephenwolfram.com
June 17, 2026 at 3:39 AM
astrophhe-bot.bsky.social
core shift, we compute the spectral index maps for all the frequency pairs and find different distributions for the core region and the jet with an unusual optically thick/flat feature at 1-2 pc from the core. Using modelfit, we find a total of 56 [4/7 of https://arxiv.org/abs/2503.18621v1]
March 25, 2025 at 6:08 AM
sagalinked.bsky.social
📰 Wolfram Language and Mathematica Version 15 introduces AI assistant capabilities, symbolic music generation, and numerous ne...

🔗 https://writings.stephenwolfram.com/2026/06/launching-version-15-of-wolfram-language-mathematica-built-in-useful-ai-lots-of-new-core-functionality/

#Tech #Dev
Launching Version 15 of Wolfram Language & Mathematica: Built-in (Useful) AI & Lots of New Core Functionality
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust visualization functionality. New functions for algebra, matrices, PDE modeling.
writings.stephenwolfram.com
June 17, 2026 at 8:14 AM
flarestart.bsky.social
Beyond model.fit(): Demystifying Gradient Descent from Scratch
via Medium Python

https://flarestart.com/article/beyond-modelfit-demystifying-gradient-descent-from-scratch-20260224
#DevNews #ProgrammingLanguages
February 24, 2026 at 4:05 PM