Displaying 1 result from an estimated 1 matches for "coccoids".
2009 May 01
1
computationally singular and lack of variance parameters in SEM
...or, and I'm not sure which one is
correct. The error message about the variables that have no variance or
error-variance parameters are for my exogenous variables (or those that I am
not listing as "fixed.x=" in the model). I have tried both single and
double arrows between ants and coccoids, but neither works. I am not sure
that I know what it means for the system to be computationally singular
(sometimes it says it is exactly singular). I am setting N=80 because I
have four observed variables with 20 observations each, I hope this is
correct. I have attached the path diagram for m...