[Ether]

Hey Jim,

That is an excellent way to graphically present the data. Thanks for posting it!

I'm wondering how much the graphs would change, particularly near the top right corner, if you used median absolute deviation from the median divided by the median (MADM/M), instead of SNR of sigma. Sigma assumes Gaussian distribution (which OPRs tend not to be). MADM/M is more robust to distribution.

If you don't have the time for that, I'll volunteer to take a crack at it if you'll post the OPR data you used.