Maz wrote:
> Dear SPMers
>
> I would like to get the beta value and I used Easy_ROI. But in the command
> window I've got this error "current plot held". Can anybody help me. Thanks
>
>
>
hey Maz, there is no error, in the command window the 'current plot
held' stands for the graph of 1st eigen values vs. means for the ROI you
selected - a mat file with the name you input has been created - double
click on it; in the workspace you now have a variable xY
xY.xyz is the centre coordinate of the ROI
xY.name well the name
def is waht you selected
XYZmm the positions of the voxels
xY.raw the raw data
xY.eigen: the 1st eigen values
xY.mean the averages
xY.overallmean and overall std well for overall mean and std
the reason why I choose to plot 1st eigen value vs mean is that the
average isn't always the best option because some voxels may have a
'strange' behaviour (i.e. not the same values as the others) which
compensated in the 1st eigen values .. matter of choice anyway
cyril
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