Error in `[.data.frame`(data.dca, , 1:nfact) : undefined columns selected when `mirt(itemtype='ggum')`

[sss]

mirt_model<-'
f1=q03,q10,q12,q22,q23
f2=q11,q20,q24,q26,q47,q49

f3=q19,q21,q25,q52,q50,q58

'

df_core_irt_ggum<-mirt(df_core,model=3,itemtype ='ggum',method = "MCEM",dentype = "Gaussian",verbose=FALSE,technical = list(NCYCLES = 100))

work well. 

But when I run a confirmation model,got error as below:

df_core_irt_ggum<-mirt(df_core,model=mirt_model,itemtype ='ggum',method = "MCEM",dentype = "Gaussian",verbose=FALSE,technical = list(NCYCLES = 100))

What's the problem?

Error in `[.data.frame`(data.dca, , 1:nfact) : undefined columns selected
Called from: `[.data.frame`(data.dca, , 1:nfact)

[Phil Chalmers]

Can you provide reproducible code for this issue?

Phil

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[Phil Chalmers]

You can just email me directly your R script and data files. There's no need to post them publicly on the forum.

Phil

On Wed, Jun 17, 2020 at 2:27 PM sss <mailtoy...@gmail.com> wrote:

How to post data.frame?more than 8000 rows.

Phil Chalmers於 2020年6月17日星期三 UTC+8下午11時12分37秒寫道：

Can you provide reproducible code for this issue?

Phil

On Mon, Jun 15, 2020 at 10:18 PM sss <mailtoy...@gmail.com> wrote:

mirt_model<-'
f1=q03,q10,q12,q22,q23
f2=q11,q20,q24,q26,q47,q49

f3=q19,q21,q25,q52,q50,q58

'

df_core_irt_ggum<-mirt(df_core,model=3,itemtype ='ggum',method = "MCEM",dentype = "Gaussian",verbose=FALSE,technical = list(NCYCLES = 100))

work well. 

But when I run a confirmation model,got error as below:

df_core_irt_ggum<-mirt(df_core,model=mirt_model,itemtype ='ggum',method = "MCEM",dentype = "Gaussian",verbose=FALSE,technical = list(NCYCLES = 100))

What's the problem?

Error in `[.data.frame`(data.dca, , 1:nfact) : undefined columns selected
Called from: `[.data.frame`(data.dca, , 1:nfact)

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