Hi John,
I notice that the 'Var' in the output of spatial normalization is kind of an
converging index.
For example,
iteration 1: FWHM=8.663 Var=1.96911
iteration 2: FWHM=7.168 Var=1.05235
iteration 3: FWHM=6.71 Var=0.914537
...
...
Using a Var vs. iteration plot, it seems to show some convergence. But, what
is the definition of this 'Var'? Secondly, what is the definition of the
FWHM? (I know it's full width at half maximum, but ...). I am needing this
information for explaining how SPM normalization works to my colleagues.
Thanks for your patience,
James
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