#OpenMx

We Are R-Ladies

@weare.rladies.org

2 weeks ago

MacBook screen showing RStudio in dark mode. The bottom right corner shows power as a function of measurement time point. Power to detect an effect the further apart measurement points are.

Today I debugged code for a simulation study on the association of home environment and child development 🤓📚

Previous versions of this plot included random jitters due to some unknown cause (looking at you #OpenMx 👀) but I fixed it now 📈

How have you used #RStats this week?

#Rladies #ggplot2

We Are R-Ladies

@weare.rladies.org

2 weeks ago

HMWN

I want to highlight a cool website by Hermine Maes: hermine-maes.squarespace.com. She has shared code for many models used in #StatisticalGenetics.

Thank you for reading my (short) overview of SEM and how to learn it - please ask away & let me know about your experience with #lavaan or #OpenMx 😀

We Are R-Ladies

@weare.rladies.org

2 weeks ago

#SEM is a vast field that I still only know a part of. What worked best for me was understanding the theory first and then writing minimal models from scratch (e.g., a regression, a CFA)

#OpenMx has a culture of script-sharing and wrapper functions, which has been helpful as well.

#RStats #RLadies

We Are R-Ladies

@weare.rladies.org

2 weeks ago

Matrix presentation of structural equation model YouTube video by Mikko Rönkkö

#OpenMx only really clicked for me when I understood matrix representations. I cannot recommend this video enough: www.youtube.com/watch?v=AbPf... for understanding how that works.

OpenMx also has a YT channel & user manual which go into all kinds of models: openmx.ssri.psu.edu/index.php/ #RStats

We Are R-Ladies

@weare.rladies.org

2 weeks ago

Sometimes, it’s quite inconvenient to write out all the formulas by hand. In that case, we can use matrix algebra.

To do this in R, we can use the #OpenMx package. OpenMx has, at times, been the bane of my existence 🙃 I recommend having a look at the QuickStart guide: vipbg.vcu.edu/vipbg/OpenMx...

We Are R-Ladies

@weare.rladies.org

2 weeks ago

Lovely first day of the #rainbowR conference with a trivia quiz and social by @libbyheeren.bsky.social and @damiepak.bsky.social 🥰🌈

Planning to finally post about #SEM tomorrow. If you have questions about working with SEM or you use #lavaan or #OpenMx please let me know in the comments! #RStats

mozardt

@mozardmohtar.bsky.social

9 months ago

Next learning goal #rstat #package #tidySEM for #tidy #workflow implementation for #structural #equation #modeling #SEM #lavaan #OpenMx using the “|>” operator cjvanlissa.github.io/tidySEM/

Melissa Wolf

@melissagwolf.bsky.social

2 years ago

Is there a good alternative to #semplot for path diagrams in #R? I'm getting error messages trying to install dependencies (specifically, #openmx) on my linux server 😭