Teaching SEM using OpenMx

Posted on Fri, 03/11/2016 - 19:44

AdminRobK Joined: 01/24/2014

Subforum for 2016 Boulder Workshop

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Boulder Workshop 2016

This is a dedicated subforum for those at the 2016 International Workshop on Statistical Genetic Methods for Human Complex Traits in Boulder, CO, USA, March 2016. It didn't see as much use as I thought it might when I created it, but at the Workshop this year, we used a "virtual question box" (specifically, a wiki hosted by Institute for Behavior Genetics). The virtual question box is now closed, but the Q&A remain viewable here.

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Posted on Wed, 09/30/2009 - 19:16

mkeller Joined: 08/04/2009

Twin Workshop 2010

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Twin Workshop 2010

Hi all,

Please post comments & responses here regarding the Twin Workshop 2010 (schedule, ideas on what to teach, ideas on how to teach, random thoughts, etc.).

Posted on Thu, 11/14/2024 - 07:48

AdminHunter Joined: 03/01/2013

OpenMx Master Class 2024 Questions

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Teaching SEM using OpenMx

Hey y'all,

Put any OpenMx Master Class questions below in this thread. We'll reply to and address as many of them as possible.

Cheers,

Mike

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Posted on Wed, 10/02/2024 - 12:37

Ilaria Joined: 07/22/2024

Interpreting bivariate ACE output

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Twin Workshop 2010

Hi all,

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Posted on Fri, 06/03/2016 - 11:50

avbroderick Joined: 06/01/2016

Moderation Model - negative estimates

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Boulder Workshop 2016

Hi,

I adapted script from the Boulder workshop to test a univariate twin model with age moderating the variance components of observational data (one single global score per twin member). When I run the model, I get a non-zero status code 6, but I can get the model to run if I add in a main effect of age on the mean. However, this model gives me negative estimates, and I’m not sure if that’s reflective of something wrong with my code. Any help is appreciated!

Thanks!

Amanda

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Posted on Wed, 03/30/2016 - 11:07

milana.smolkina Joined: 02/22/2016

Code 6

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Boulder Workshop 2016

Hi everyone,

During the workshop you introduced the mxTryHard() command instead of mxRun(), which I read
can be useful when mxRun() returns a code 6.

I am running a bivariate saturated model with binary data. The main saturated model I run seems to run better, but when I use mxTryHard() for sub-models the messages look like this:

Begin fit attempt 1 of at maximum 11 tries
Lowest minimum so far: 3159.84949759196
OpenMx status code 6 not in list of acceptable status codes, 0
OpenMx status code 6 not in list of acceptable status codes, 0

Posted on Mon, 01/27/2014 - 12:00

neale Joined: 07/31/2009

International Workshop on Statistical Genetic Methods for Complex Human Traits. March 3-7, Boulder Colorado

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Teaching SEM using OpenMx

This workshop will be taught at the Millennium Harvest Hotel in Boulder Colorado, March 3-7 2014, and will use OpenMx extensively. Those interested in a general education in OpenMx use would be well-served by the course, at the expense of learning about genetics and modeling data from twins and other relatives.

http://www.colorado.edu/ibg/content/march-3-march-7-2014-2014-international-workshop-statistical-genetic-methods-human-complex