OpenMx General Help
Staying informed with OpenMx
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Welcome to the OpenMx General Help Forum
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problems with simple ACE model
I am running a simple ACE model for twin analysis with age and gender as confounds (115 DZ pairs and 60 MZ pairs). I use the model from International Statistical Genetics Workshop:
[https://ibg.colorado.edu/cdrom2022/day2/00_ACEvc_contin.R](https://ibg.colorado.edu/cdrom2022/day2/00_ACEvc_contin.R "https://ibg.colorado.edu/cdrom2022/day2/00_ACEvc_contin.R")
When I run the model, I get the following results:
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five-factor model
I'm using OpenMx to run a five-factor CFA model for 14 variables. "phenfile0" is the dataset and I used its 3rd to 16th columns as a input with the colnames of "y1" to "y14".
"y12" "y13" "y14" belong to "F1"; "y9" "y10" "y11" belong to "F2"; "y6" "y7" "y8" belong to F3; "y3" "y4" "y5" belong to F4; and "y1" "y2" belong to F5.
**Issue**: the output gave a larger SE for some loadings. I'm not sure if the code is correct. Thanks for your help!
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how to compare two correlation matrices
I'm trying to compare two correlation matrices from a study of two different samples of people from different cultures. These matrices aren't symmetrical because they represent the correlations of two different sets of psychological tests. Is there a way to do this in OpenMx?
Thanks in advance for your help.
Krzysztof
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Fitting AE CE and E model to a bivariate model
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Variance model graph
Does anyone have a graph template for the bivariate variance estimate model?
Best,
Didi
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ACE and ADE model returns the same AIC
I'm currently working on a project with twin data, and I encountered some weird results when fitting ACE and ADE models with OpenMx.
I fit both bivariate ACE, AE, and ADE models based on the script from Dr.Hermine Maes' website. However, our model returns unusual results. Specifically, the AIC values for ACE and ADE are the same. Also, the parameter estimates for the ADE model do not match the phenotypic correlations. Has anyone encountered similar problem before? Any kind of help is appreciated!!
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How to get estimates of latent random slopes and random intercept
Here is code to simulate HLM data
library(dplyr)
library(tidyr)
library(OpenMx)
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