Rick,
I have one stat map for each subject, each of which you can think of as a single point in "time." Putting the stat maps into the bucket dataset gives me 30 subjects as 30 sub-briks, each with a different age. For each voxel, I would like to plot those ages (as if they were time points), on one axis, against the activation at that voxel on the other axis. Each graph therefore should have 30 points.
I hope this now makes more sense, and thanks for the reply!
Justin