Error Message running cfa.mi (semTools) after specifing Imputation-Modell in mice

[Sebastian85]

Hello,

I'm conducting a cfa to test a six factor structure of aquestionnaire, four Items are loading on each factor. The Items shows a five-point likert scale, I consider them as ordered. To handle the Missings I'm conducting a Multiple Imputation with the R-Package mice. The following Codes dosen't work: 

#Specifing Imputation-Model 

eltern.imp.pmm<-mice(Eltern_ek, pri=F, m=1, maxit = 0)

eltern.imp.pmm$predictorMatrix

pred.eltern.pmm<-eltern.imp.pmm$predictorMatrix

pred.eltern.pmm[,"id"]<-0

pred.eltern.pmm

meth.eltern.pmm<-eltern.imp.pmm$meth

meth.eltern.pmm["sex.x"]<-""

meth.eltern.pmm

Eltern.imp.pmm<-mice(Eltern_ek, method=meth.eltern.pmm, pred=pred.eltern.pmm, m=5, maxit=5, pri=F, seed= 12345)

#Running cfa

imps.mice<-list()

for(i in 1:5) imps.mice[[i]]<-complete(Eltern.imp.pmm, action=i)

Model<-'F1=~Item11+Item12+Item13+Item14

F2=~Item21+Item22+Item32+Item42

F3~Item31+Item32+Item33+Item34

F4=~ Item41+Item42+Item43+Item44

F5=~ Item51+Item52+Item53+Item54

F6=~ Item61+Item62+Item63+Item64'

cfa.fit<-cfa.mi(, data=imps.mice, ordered=names(Eltern_ek),estimator = "WLSMV", mimic="MPlus")

I get the following error: 

Error in colMeans(do.call(rbind, coefList)) : 

  'x' must be an array of at least two dimensions

Without Specifing the Imputation-Model, the Code works fine. It would be great if anyone has an idea to solve the problem. Thanks!

Best Regards

Sebastian 

[balal izanloo]

Hi

First of all check your syntax for the comma befor 'data'. I think something is wrong.

cfa.fit<-cfa.mi(, data=imps.mice, 

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[Sebastian85]

Dear balal,

thank you. You're right, the synthax isn't correct (Correct cfa.mi-synthax see below). Unfortunately, this not causes the error. 

#Specifying Imputation-Model 

eltern.imp.pmm<-mice(Eltern_ek, pri=F, m=1, maxit = 0)

eltern.imp.pmm$predictorMatrix

pred.eltern.pmm<-eltern.imp.pmm$predictorMatrix

pred.eltern.pmm[,"id"]<-0

pred.eltern.pmm

meth.eltern.pmm<-eltern.imp.pmm$meth

meth.eltern.pmm["sex.x"]<-" "

meth.eltern.pmm

Eltern.imp.pmm<-mice(Eltern_ek, method=meth.eltern.pmm, pred=pred.eltern.pmm, m=5, maxit=5, pri=F, seed= 12345)

#Running cfa

imps.mice<-list()

for(i in 1:5) imps.mice[[i]]<-complete(Eltern.imp.pmm, action=i)

Model<-'F1=~Item11+Item12+Item13+Item14

F2=~ Item21+Item22+Item32+Item42

F3=~ Item31+Item32+Item33+Item34

F4=~ Item41+Item42+Item43+Item44

F5=~ Item51+Item52+Item53+Item54

F6=~ Item61+Item62+Item63+Item64'

cfa.fit<-cfa.mi(Model, data=imps.mice, ordered=names(Eltern_ek),estimator = "WLSMV", mimic="MPlus")

Best Regards

Sebastian 

I (still) get the following error: 

Error in colMeans(do.call(rbind, coefList)) : 

  'x' must be an array of at least two dimensions

[Terrence Jorgensen]

I don't notice anything wrong with the syntax.  Make sure you have the latest software install, in case this is a bug that was already resolved.

install.packages("lavaan", repos = "http://www.da.ugent.be", type = "source")
devtools::install_github("simsem/semTools/semTools")

Restart R before running your script again.  If the error still occurs, I would need your data and minimal script required to reproduce the error, in order to track it down.

Terrence D. Jorgensen

Assistant Professor, Methods and Statistics

Research Institute for Child Development and Education, the University of Amsterdam

http://www.uva.nl/profile/t.d.jorgensen