SEM Software

This is what i wrote for my model specification but I'm getting this error
2: In eval(expr, envir, enclos) :
Could not compute QR decomposition of Hessian.
Optimization probably did not converge.

> model.dhp <- specifyModel ()
1: EA_response -> EA_survival,NA,1
2: EA_response -> EA_progeny,gam12
3: EA_response -> EA_progeny_wet_mass,gam13
4: EA_response -> EA_progeny_dry_mass,gam14
5: FC_response -> FC_survival,NA,1
6: FC_response -> FC_progeny,gam22
7: BA_response -> Ba_emergence,NA,1
8: BA_response -> Ba_shoot_length,gam32
9: BA_response -> Ba_root_length,gam33

Hi, I just found out about OpenMx and it is exactly the software I was looking for, which is great! I am so happy it works for R, and it has good documentation.

Unfortunately, using OpenMx is somewhat limited due to the NPSOL library, which only supports Linux versions that use the Gnu C Compiler (GCC) up to version 4.6. But that is not helpful on standard Linux systems, such as Fedora 20, which uses gcc 4.8.

I have some TIFF and JPEG SEM pictures of Si3N4 and SiC ceramics, and i would like to use image analysis software such as ImageJ to get info such as grain size distribution, grain counts, grain aspect ratio..., etc. ImageJ has "particle analysis" tool, but i found it not very useful. This could be due to my lack of experience, or because the elongated grains are tangled and too complex for the tool. Next week i have to submit a detailed paper about this topic.