Search found 4 matches

by odukesucl
Wed Dec 10, 2014 11:47 am
Forum: Realcom user forum
Topic: Imputation and perfect prediction
Replies: 2
Views: 1992

Imputation and perfect prediction

Hi, I am developing a multi-level imputation model for several categorical variables and want to include many predictor variables in the model. How does REALCOM IMPUTE cope with perfect prediction? I am anticipating PP to be an issue, and read in the book 'Multiple Imputation and Its Application' (C...
by odukesucl
Fri Oct 03, 2014 2:27 pm
Forum: Stat-JR user forum
Topic: 2LevelImpute
Replies: 20
Views: 10221

Re: 2LevelImpute

Hi, This is all very helpful, thank you. However, I'm not sure I understand your answer to question 3. In a longitudinal setting, observations at times points closer together usually more highly correlated than observations further apart in time. Wouldn't we want to preserve this structure in the im...
by odukesucl
Fri Oct 03, 2014 10:46 am
Forum: Realcom user forum
Topic: Error when imputing unordered categorical responses
Replies: 2
Views: 2841

Error when imputing unordered categorical responses

Hi, I am trying to impute 2 categorical responses (1 level 1, 1 level 2) and one binary (level 1). The categorical responses are ordered, but I want to impute them as unordered in case proportionality does not hold. I have already tried imputing them all as ordered categorical variables, which seeme...
by odukesucl
Thu Oct 02, 2014 2:14 pm
Forum: Stat-JR user forum
Topic: 2LevelImpute
Replies: 20
Views: 10221

Re: 2LevelImpute

Hi, Having installed Stat JR and worked through the 2levelImpute tutorial, I have a few questions: 1) Does the template allow an ordinal/multinomial response variable for the MOI? 2) Again, in the MOI, is it possible to implement an unstructured covariance matrix for the random effects e.g. allow ra...