* Restructure to calculate kappa. DATA LIST LIST /reader (F8.0) a (F8.0) b(F8.0) image(F8.0). BEGIN DATA 1 1 1 1 1 0 1 2 1 1 2 3 2 1 1 1 2 2 2 2 2 0 1 3 3 1 1 1 3 2 1 2 3 1 0 3 END DATA. LIST. NUMERIC rdr1a rdr1b rdr2a rdr2b rdr3a rdr3b(F8.0). VECTOR v=rdr1a TO rdr3b. COMPUTE v(reader*2-1)=a. COMPUTE v(reader*2)=b. AGGREGATE /OUTFILE=* /BREAK=image /rdr1a = MAX(rdr1a) /rdr1b = MAX(rdr1b) /rdr2a = MAX(rdr2a) /rdr2b = MAX(rdr2b) /rdr3a = MAX(rdr3a) /rdr3b = MAX(rdr3b).