compareFit function broken

[vsavalei]

This code yields an error:

library(lavaan)
library(semTools)

Model1 <- '
F1 =~ x1 + x2 + x3
F2 =~ x4 + x5 + x6
F3 =~ x7 + x8 + x9
'

Run1 <- cfa(Model1, data=HolzingerSwineford1939, group="school")
Run2 <- cfa(Model1, data=HolzingerSwineford1939, group="school",group.equal="loadings")

semTools::compareFit(Run1,Run2)

Error in loadNamespace(x) : there is no package called ‘lavaan.mi’

[vsavalei]

If I install lavaan.mi (just to see what would happen), I now get output but with warning messages:

Warning messages:
1: lavaan->FUN():  
   Unknown argument ‘pool.robust’ for ‘fitMeasures’ 
2: lavaan->FUN():  
   Unknown argument ‘pool.method’ for ‘fitMeasures’ 
3: lavaan->FUN():  
   Unknown argument ‘pool.robust’ for ‘fitMeasures’ 
4: lavaan->FUN():  
   Unknown argument ‘pool.method’ for ‘fitMeasures’ 

[TDJorgensen]

Thanks, I prevent the warnings in my local copy by only adding the pool.* arguments when a lavaan.mi-class object is detected. I can't find why the error appears in your OP, since I only conditionally check for that namespace when a lavaan.mi-class object is detected (so it shouldn't be necessary to have the lavaan.mi package installed when you are only using lavaan objects).

I can't push changes yet because I am in the middle of a big set of changes to compRelSEM(), which might be problematic if you install a version I push now. I should have created a forked version to work on that big change.