snr  psuccess  ntrials 10, r6321, r6333
-26.0 0.0
-25.5 0.007
-25.0 0.039
-24.5 0.157  0.14
-24.0 0.362 
-23.5 0.701  0.681 
-23.0 0.914  
-22.5 0.985  0.988
-22.0 1.0    1.0