[R-sig-ME] Rasch with lme4

[Andy Fugard]

Chuck Cleland wrote:
> 
> Allison, P.D. (2005).  Fixed Effects Regression Methods for Longitudinal
> Data Using SAS. Cary, NC: SAS Institute.
> 
>   covers some of this territory.  As someone else pointed out, a
> limitation is that including "Subject" as a factor precludes inclusion
> of specific subject explanatory variables (e.g., gender).

Many thanks - shall track that down.  Though I haven't yet been able to 
replicate the limitation.

A