OpenMx 2.0 Discussion
bwiernik
Joined: 01/30/2014
Zero-inflated poisson counts using mxThreshold
I'm working with a latent variable model and I'd like to predict a negative binomial count response variable. I found the clever cludge that @AdminRobK previously shared to use thresholds fixed to parametric quantiles for negative binomial distribution ([#7856](https://openmx.ssri.psu.edu/comment/7856#comment-7856); [180313.R](https://openmx.ssri.psu.edu/sites/default/files/180313.R) ). I think this approach will work well for me. The issue I've got is that my dependent variable is clearly zero-inflated.
shufai
Joined: 10/08/2020
mxCI results in 2.18.1 and 2.19.1 are different
I found that the confidence interval computed by adding mxCI in 2.19.1 are different from those in 2.18.1.
This is the code from the example of mxCI:
# From the example of mxCI()
# generate data
covariance <- matrix(c(1.0, 0.5, 0.5, 1.0),
nrow=2,
dimnames=list(c("a", "b"), c("a", "b")))
data <- mxData(covariance, "cov", numObs=100)
Kwabenaaaddo
Joined: 02/01/2021
help: "Cov" is not positive definite.
Hello Mike,
Thank you for your awesome software. I have been working on a TSSEM and once I run my attached codes on the data in the excel file attached, I get the message below after the first stage regression is completed:
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Zhenzhen
Joined: 12/14/2020
In the ACE Model:warning messages during my data analysis
Dear developer:
When I use ACE model to calculate heritability，I got a warning messages during the analysis（See Attachment）. Is there a problem with my data and will it affect the results?
when there was a warning message, I found that the estimated results will change under different start values.
Could you please provide me more details?
Thank you very much.
Best regards,
Zhenzhen Luo
Zhenzhen
Joined: 12/14/2020
In the ACE Model:warning messages during my data analysis
Dear developer:
When I use ACE model to calculate heritability，I got a warning messages during the analysis（See Attachment）. Is there a problem with my data and will it affect the results?
when there was a warning message, I found that the estimated results will change under different start values.
Could you please provide me more details?
Thank you very much.
Best regards,
Zhenzhen Luo
khusmann
Joined: 08/11/2019
checkpoints in tryHard
Hi all,
I'm running large-ish models with mxTryHard, but notice checkpoints aren't an option as with mxRun. Is there still a way to save / load progress as I go?
Thanks!
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iembry
Joined: 05/31/2020
povRAM error - can't install OpenMx on GNU/Linux Distribution (R 4.0.0)
Hi, I recently attempted to update to the newest OpenMx release on R 4.0.0 on a GNU/Linux Distribution (Ubuntu-based) and the installation was unsuccessful.
I am only including the part of the installation process with the error message below:
Benny
Joined: 05/15/2020
getOpenMx.R with R 4.0.0
Hello,
I am trying to install OpenMx with the NPSOL-optimizer with R 4.0.0 using the <% source('https://openmx.ssri.psu.edu/software/getOpenMx.R')%>-command (See [here](https://openmx.ssri.psu.edu/installing-openmx)). While the CRAN-version works fine, trying to install the NPSOL-version gives me the following error:
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Gunnar
Joined: 02/21/2019
saving confidence intervals to a separate file
Hello, in asimulation loop I want o to save results for instance confidence intervals for each run in separate file. Hos to do this is rather easy in eg.g. lavaan buit I have trouibles as newbie to find out how to specify the matrix cells for the parameter values i want to save. An example from Jaks book on Meta SEM:
pathmodel= mxModel(title,obs,matrixB,matrixP,matrixI, Ind_pos,Ind_neg,conf,algebraS,exp,fit)
pathmodelOut = mxRun(pathmodel, intervals = TRUE)
# retrieve the output
summary(pathmodelOut)
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yaning
Joined: 04/12/2019
Warning message
Hello, I want to run a G*E model (2 binary variables ) using the script from “JuanJMV”(https://openmx.ssri.psu.edu/node/4324). Unfortunately, there seems to be some errors in my model
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