eig-function, octave vs matlab

[Alexander Sprafke]

Dear all,

I am working on octave 2.9.9 on linux. I am trying to port some  
matlab code into octave. Actually, I am through so far, but noticed  
that results computed with octave differ slightly (but still  
significantely) from those computed with matlab.
I spotted some lines which may be the reason, under matlab:

[EXY,K2] = eig(M,'nobalance')

Since octave's eig-function doesn't know about the nobalance-option,  
I just changes this line to:

[EXY,K2] = eig(M)

otherwise octave wouldn't run the code. Maybe this is the reason of  
the different results I obtain, so my question is:
How do I get octave to act like matlab concerning above's command?

Thank you very much!

Alexander Sprafke