[R-meta] Wald_test error

[Cátia Ferreira De Oliveira]

Sorry, I meant constraints = matrix(c(1,0,0,0,1,0,0,0,1),3,3)

On Wed, 11 Aug 2021 at 13:32, Cátia Ferreira De Oliveira <cmfo500 using york.ac.uk>
wrote:

> Dear Michael,
>
> I finally see what you meant by your question. I did not realise we now
> had to provide a matrix for the constraints.
> If you want to test the overall effect of a variable with three groups,
> which constraints would you use? Do you have any good resources on how to
> do it?
> Should it be c(1,1,1,0,0,0) because you would be contrasting the group
> levels and not interested in the interactions?
>
> Group.model<- robu(formula = yi ~ 0 + Group+ Group:Variable, data = Data,
> studynum = Study, var.eff.size = vi,  rho = .8, small = TRUE)
> print(Group.model)
>
> Wald_test(Group.model, constraints = ?, vcov = "CR2")
>
> Best wishes,
>
> Catia
>
> On Tue, 10 Aug 2021 at 14:42, Cátia Ferreira De Oliveira <
> cmfo500 using york.ac.uk> wrote:
>
>> Dear Michael.
>>
>> I am not sure, I just ran it as it was presented in the blogpost.
>>
>> Best wishes,
>>
>> Catia
>>
>> On Tue, 10 Aug 2021 at 14:08, Michael Dewey <lists using dewey.myzen.co.uk>
>> wrote:
>>
>>> Dear Cátia
>>>
>>> Is constraints allowed to be a vector rather than a matrix?
>>>
>>> Michael
>>>
>>> On 10/08/2021 12:39, Cátia Ferreira De Oliveira wrote:
>>> > Dear all,
>>> >
>>> > I have tried to run the code in this post:
>>> > https://www.jepusto.com/clubsandwich-for-rve-meta-analysis/
>>> >
>>> > *options(width=150)*
>>> > *library(robumeta)*
>>> > *library(clubSandwich)*
>>> >
>>> >
>>> > *data(dropoutPrevention)*
>>> >
>>> >
>>> >
>>> > *m3_robu <- robu(LOR1 ~ study_design + attrition + group_equivalence +
>>> > adjusted*
>>> > *                + outcome + evaluator_independence*
>>> > *                + male_pct + white_pct + average_age*
>>> > *                + implementation_quality + program_site + duration +
>>> > service_hrs, *
>>> > *                data = dropoutPrevention, studynum = studyID,
>>> var.eff.size
>>> > = varLOR, *
>>> > *                modelweights = "HIER")*
>>> > *print(m3_robu)*
>>> >
>>> >
>>> > *Wald_test(m3_robu, constraints = 10:12, vcov = "CR2")*
>>> >
>>> >
>>> > But it gives me the following error when I run the Wald_test:
>>> >
>>> >
>>> >
>>> > *Error in if (!inherits(constraints, "matrix") | ncol(constraints) !=
>>> p) {
>>> > :   argument is of length zero*
>>> >
>>> > Does anyone know why this is happening?
>>> >
>>> > Best wishes,
>>> >
>>> > Catia
>>> >
>>> >       [[alternative HTML version deleted]]
>>> >
>>> > _______________________________________________
>>> > R-sig-meta-analysis mailing list
>>> > R-sig-meta-analysis using r-project.org
>>> > https://stat.ethz.ch/mailman/listinfo/r-sig-meta-analysis
>>> >
>>>
>>> --
>>> Michael
>>> http://www.dewey.myzen.co.uk/home.html
>>>
>>
>>
>> --
>> Cátia Margarida Ferreira de Oliveira
>> Psychology PhD Student
>> Department of Psychology, Room B214
>> University of York, YO10 5DD
>> pronouns: she, her
>>
>
>
> --
> Cátia Margarida Ferreira de Oliveira
> Psychology PhD Student
> Department of Psychology, Room B214
> University of York, YO10 5DD
> pronouns: she, her
>


-- 
Cátia Margarida Ferreira de Oliveira
Psychology PhD Student
Department of Psychology, Room B214
University of York, YO10 5DD
pronouns: she, her

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