[Mne_analysis] MNE_average_forward_solutions

[kulashek at mappi.helsinki.fi]

Dear all, 

I was curious about the usage of an averaged forward solution in an 
experiment with several runs. 
1>On what criteria is the value of the "weight" decided for the several 
forward solutions to be averaged ? 
2>And how much of a loss would there be in spatial accuracy by such an 
averaging ?

Regards,
Shrikanth