Dear Statalist,
I need to analyze data with complex structures.

My data set consists of individuals who are fully nested within teams, which are nested "crossly" within functions and locations, which are fully nested within firms.
(individuals) ---> (teams) ---> (functions) and (locations) ---> (firms)

I guess I need to do four-level cross-classified multi-level analysis and I have the following hypothetical syntax:

Code:
xtmixed y x || firm: || _all:R.function: || _all:R.location: || team:

I hope someone can confirm whether it is right, or correct it if it is wrong. Thank you for helping me out.

Best,
Eunhee