Third Party Software
khaliduni
Joined: 05/24/2018
TSSEM_stage2: issue with CIs. And a multiple effect sizes for the same variable
Hi all,
First of all, I'd like to say thank you to Professor Mike for his efforts in helping all of those who are using his incredible metaSEM package.
Recently, I successfully managed to conduct TSSEM. But, I have some issues with the CIs. The results of stage 2 don't show some of CIs . So, I'm not sure if I'm missing something. (R script, including data, is attached).
tbates
Joined: 07/31/2009
mxTryHard and loglikelihood differs from other runs of a model
A user asks
> When we tried to run the tutorial script from your preprint PeerJ paper (Bates, Maes and Neale, 2017), our script doesn't produce the same overall estimate or standardised estimates as in the PeerJ paper (e.g. we have 27,287.23 as the `-2*loglikelihood` instead of 12,186.28 in the PeerJ paper).
Generally, if you’re in any doubt about a model solution or if there’s a code or warning after the fun, it's worth trying:
```Splus
m1 = mxTryHardOrdinal(m1)
```
tbates
Joined: 07/31/2009
umxVersion() vs. umxVersion(“umx”).
"How much of a problem is this error when we run umXVersion(“umx”)?:
"Error in mxOption(model, "Default optimizer") : trying to get slot "options" from an object of a basic class ("character") with no slot?”
You should just run
umxVersion()
It is thinking that the first item you provide is a model, and tries to see what version you ran under.
- Read more about umxVersion() vs. umxVersion(“umx”).
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Deng xiaoping
Joined: 03/30/2018
How to write the syntax of bifactor model for Big Five Model by the metaSEM
Hi Mike
I have wrote a paper by metaSEM. Now，I am testing the bifactor model for the Big Five model by metaSEM, but I met dfficulties in the stage 2. I written the syntax on the basic of A higher-order confirmatory factor analytic model for the Big Five model(from the book Meta-Analysis A Structural Equation Modeling Approach), but the result was "Error in if (pchisq(chi.squared, df = df, ncp = 0) >= upper) { : missing value where TRUE/FALSE needed".
I'll always be very very grateful for your suggestion.
PeterK
Joined: 03/20/2018
Error in metasem, tssem2, “operations are possible only for numeric, logical or complex types”
I try to estimate parameters in a meta-analytical path model, where A -> B -> C (full mediation) based on a list of correlation matrices in metaSem.
My A1 matrix is as follows:
A1 <- create.mxMatrix(c(0, 0, 0,
indep2med, 0, 0,
0, med2dep, 0),
type="Full", byrow=TRUE, ncol=3, nrow=3,
as.mxMatrix=TRUE)
dimnames(A1)[[1]] <- dimnames(A1)[[2]] <- variable.labels
Eleanor
Joined: 09/12/2017
Problem in "tssem1"
Hi Mike and all,
I'm a new learner of meta-analysis and just try to use metaSEM.
My dataset comprises 90 sets of 19*19 correlation matrix and every one contains some missing values. I'm trying to estimate a TSSEM model but encounter a problem in the first stage.
- Read more about Problem in "tssem1"
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tbates
Joined: 07/31/2009
How do I distinguish paths by group in multiple group models?
By default, `umxRAM` labels paths using s simple "A_to_B" style.
To distinguish what group a path is in, simply add `suffix = ` to the `uxmRAM` call. This will add the suffix string to each path. (for one-off differences, just add the label manually inside `umxPath`).
so
```
m1 = umxRAM("firstGroup", data=data, suffix = "_group1",
umxPath(v.m. = c("A", "B")),
umxPath('A', with = 'B')
)
```
Would contain paths like "A_with_B_group1"
MaxScott
Joined: 01/01/2018
Errors while including covariates to metaSEM
I'm attempting to add covariates to network meta-analytic model that I`m fitting in metasem. As i know, the network meta-analytic model is designed to model comparisons betwixt a reference group and a set of alternative groups. Each comparison between the reference and other groups is modeled as a independent outcome.
- Read more about Errors while including covariates to metaSEM
- 2 comments
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ZHIHONG REN
Joined: 12/11/2017
Why I can not get the Goodness-of-fit indices?
Dear Professor Cheung,
I used metaSEM for structural equation meta-analysis to test the mediation model. However, it is impossible to draw a suitable fitting index.
(ex.
TLI -Inf
CFI 1.00
AIC 0.00
BIC 0.00
)
I don't know whether there is a grammar problem, could you please help me to check it? All data, syntax, and model diagrams are in the attachment.
sorin.valcea
Joined: 05/31/2017
Credibility Intervals
Hello all!
Is there a way to obtain credibility intervals in MetaSEM?
Thanks!
- Read more about Credibility Intervals
- 1 comment
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