Behavioral Genetics Models
JBosdriesz
Joined: 03/07/2017
Multiple testing
First of all, is any such correction really needed for 9 outcomes?
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JuanJMV
Joined: 07/20/2016
doubt with binary variables
I am trying to do a joint analysis between 2 binary variables and 1 continuous variable I am having some problems to fix the variance for the 2 binary variables equal 1.
I think I should change something here
matUnv <- mxMatrix( type="Unit", nrow=nvo, ncol=1, name="Unv1" )
matOc <- mxMatrix( type="Full", nrow=1, ncol=nv, free=FALSE, values=oc, name="Oc" )
var1 <- mxConstraint( expression=diag2vec(Oc%&%V)==Unv1, name="Var1" )
NVO=2
NV=3
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chancey
Joined: 09/09/2017
Rationale for Bootstrapping CIs
Is there a rationale for bootstrapping 95% CIs for univariate ACE estimates when relying on a relatively small convenience sample of MZ/DZ twins? Any source(s) that would support doing so?
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JuanJMV
Joined: 07/20/2016
Moderation Model
I am trying to fit a moderation model. I have modified one script but in this script the moderation variable is the same for twin1 and twin 2 (age). I want to fit a moderation model with 1 variable with different values for twin1 and twin2 (like IQ). I have done all the changes but I am not sure if it is correct. Specially this line:
meanG <- mxAlgebra( expression= cbind((int + DR1),(int + DR2)), name="expMeanG" )
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ECTore
Joined: 11/06/2017
Direction of causation model
I have a question regarding the Direction of Causation (DOC) model. I have found a very useful script at the following link and I'm trying to modify it according to my dataset: http://ibg.colorado.edu/cdrom2016/verhulst/Causation/DOC%20student.R.
I have 2 observed variables (x and y, both continuous) and I would like to verify if their association is causal (i.e. if x causes y. The inverse direction is not possible as x comes before y).
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Fengxia
Joined: 11/02/2017
Bivariate Cholesky - Continuous & Ordinal some errors
I am trying run bivariate cholesky model analyses with my data in OpenMx2.5.0 recently. But I've got a couple of questions:
1)When I ran the code "CorFit <-mxRun(CorModel, intervals=F)", I got error message"Error in eval(result, envir = env) : object 'MZ.rMZ' not found".
JuanJMV
Joined: 07/20/2016
Sex differences in bivariate model
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likelycandidate
Joined: 09/28/2017
Exclamation points indicating
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koak
Joined: 05/10/2012
Deleting attachments from posts
Does anyone know how I can delete attachments that I put on replies to posts on the forum? There are a couple I would like to delete, but at the moment cannot even view them in the reply posts (so no attachment is up with the post).
Thank you for your assistance
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chancey
Joined: 09/09/2017
Another CI problem w/ ordinal ACE model
It appears my 95% CI problems for a series of ordinal ACE models I'm running is not solved after all. Specifically, while CIs for my AE and CE submodels appear to be fine, the ACE CIs return an error (shown in bold below).
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