reading the tutorial for 2023, it is said that the following capabilities are not available (see below). Are they possible now? Thank you!
"Some important features are NOT available (yet) in lavaan:
– multilevel sem with random slopes (this is under developement)
– support for variable types other than continuous, binary and ordinal (for example: zero-inflated
count data, nominal data, non-Gaussian continuous data); it is unlikely that this will be part of
lavaan any time soon, for the simple reason that these variable types need numerical quadrature,
and this is too slow to be practical in (pure) R.
– support for discrete latent variables (mixture models, latent classes) although can use the
sampling weights and multiple group features to mimic some mixture models)"
Michael.