[R] Package sem

[Gang Chen]

Hi,

I am trying to run some path analysis with Dr. Fox's sem package. The  
number N in sem(ram, S, N) is supposed to be the total number of  
observations, right? However, in my situation the effective number of  
degrees of freedom for each observed variable is estimated by some  
auto-regression process, thus each variable bears a different DF. Is  
there a way I could run such a path analysis with a vector of DF's in  
sem?

Thanks,
Gang