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Teaching SEM using OpenMx

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Picture of user. 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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Picture of user. 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.).

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No user picture. Ilaria Joined: 07/22/2024

Interpreting bivariate ACE output

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Twin Workshop 2010

Hi all, 

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No user picture. 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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No user picture. 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

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Picture of user. 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

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No user picture. ElettraPezzica Joined: 08/24/2011

Twin Workshop 2012?

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Teaching SEM using OpenMx
Good morning,
I need to know if there will be a twin model fitting course during 2012.
Thank you
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Picture of user. neale Joined: 07/31/2009

Summer School Twin Data Analysis Workshop at King's College London

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Teaching SEM using OpenMx
Summer School at King's College will teach SEM for genetically informative datasets June 20-24 2011

http://www.kcl.ac.uk/schools/summerschool/si/sgdp/course1/

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Picture of user. tbates Joined: 07/31/2009

OpenMx wikipedia page

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Teaching SEM using OpenMx
hi all,
I started a wikipedia page for OpenMx,

Feel free to dig in

http://en.wikipedia.org/wiki/OpenMx

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Picture of user. Fruhling Joined: 06/09/2010

OpenMx Summer School

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Teaching SEM using OpenMx
Could you please add this to the workshop list:

11th MRC Social, Genetic and Developmental Psychiatry Centre Summer School
12th – 16th July 2010
Institute of Psychiatry, King’s College London, London UK
Twin Model Fitting: Introducing the New OpenMx
Next year's OpenMx course: June 20th - 24th, 2011. Registration opens in October 2010.

This course will teach the basic principles of the classical twin model as well as the basic skills to analyze twin data by teaching delegates how to write simple scripts and how to interpret the output.

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