6     No. of Problems. Here set up for six analyses of data, 3 of each of two datasets.
  1     Model Number (1= One operation; 2 = Two Operations) here set for 1 operation
  7  7           No. of Rows and Cols.     See Birnbaum(1978) Cog. Theory Vol 3.
   -92  1300  2527  3922  5422  7233  9480
 -1522   006  1371  2629  4173  5757  7822
 -2578 -1339   163  1551  2831  4263  6137
 -4173 -2690 -1310   010  1371  2880  4527
 -5861 -4235 -2892 -1480  -024  1318  2757
 -7684 -6076 -4624 -2939 -1584  -173  1408
 -9724 -8084 -6629 -4592 -3069 -1559  -061
  9897 13310 19145 25278 34310 44269 58429
  7833 10102 13973 18800 26090 33555 42141
  6204  7933  9969 13610 19292 26080 32114
  4422  6131  7896  9990 13742 19851 25469
  3188  4345  6065  7663  9959 14386 18937
  2198  3100  4276  5812  7588 10031 13612
  1296  2051  2986  4143  5892  7743  9980
     1     1     1     1     1     1     1    These weights all 1
     1     1     1     1     1     1     1     i.e., nothing missing
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1   
   200   300   400   500   600   700 10000
   000   100 10000     0   147
  1      (for one-operation model, we fix CR=m. This is the end of first problem.
  2     Model Number (1= One operation; 2 = Two Operations) here set for 2 operations
  7  7           No. of Rows and Cols.     See Birnbaum(1978) Cog. Theory Vol 3.
   -92  1300  2527  3922  5422  7233  9480
 -1522   006  1371  2629  4173  5757  7822
 -2578 -1339   163  1551  2831  4263  6137
 -4173 -2690 -1310   010  1371  2880  4527
 -5861 -4235 -2892 -1480  -024  1318  2757
 -7684 -6076 -4624 -2939 -1584  -173  1408
 -9724 -8084 -6629 -4592 -3069 -1559  -061
  9897 13310 19145 25278 34310 44269 58429
  7833 10102 13973 18800 26090 33555 42141
  6204  7933  9969 13610 19292 26080 32114
  4422  6131  7896  9990 13742 19851 25469
  3188  4345  6065  7663  9959 14386 18937
  2198  3100  4276  5812  7588 10031 13612
  1296  2051  2986  4143  5892  7743  9980
     1     1     1     1     1     1     1    These weights all 1
     1     1     1     1     1     1     1     i.e., nothing missing
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1   
   200   300   400   500   600   700 10000
   000   100 10000     0   147
  0      (for two-operation model, we allow CR = m to be free.
  2     Model Number (1= One operation; 2 = Two Operations) here set for 2 operations
  7  7           No. of Rows and Cols.     See Birnbaum(1978) Cog. Theory Vol 3.
   -92  1300  2527  3922  5422  7233  9480
 -1522   006  1371  2629  4173  5757  7822
 -2578 -1339   163  1551  2831  4263  6137
 -4173 -2690 -1310   010  1371  2880  4527
 -5861 -4235 -2892 -1480  -024  1318  2757
 -7684 -6076 -4624 -2939 -1584  -173  1408
 -9724 -8084 -6629 -4592 -3069 -1559  -061
  9897 13310 19145 25278 34310 44269 58429
  7833 10102 13973 18800 26090 33555 42141
  6204  7933  9969 13610 19292 26080 32114
  4422  6131  7896  9990 13742 19851 25469
  3188  4345  6065  7663  9959 14386 18937
  2198  3100  4276  5812  7588 10031 13612
  1296  2051  2986  4143  5892  7743  9980
     1     1     1     1     1     1     1    These weights all 1
     1     1     1     1     1     1     1     i.e., nothing missing
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1   
     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1   
   200   300   400   500   600   700 10000
   000   100 10000     0   147
  1     (In this run of two-operation model, we fix m = 1.47 to assess constrained version)
  1              Model Number (here set for 1 operation) illustrates an asymmetric case.
  7 15           No. of Rows and Cols. Data from Birnbaum & Sotoodeh (1991) Psych Science
  0000   240  4184  2063  4554  8390  9394 -0187  3111  3277 -0052  8722  6631  5055  7292 
 -0353 -0105  3956  1774  4500  7405  8743 -0020  2670  3008  0033  8571  6180  5351  6846 
 -4447 -3700  0000 -0347  0954  5128  7604 -4460 -1124 -1739 -3614  6230  2680  1230  4616 
 -2537 -1799  1224  0000  2905  6642  8285 -1886  1382   700 -2395  7424  4947  3107  6257 
 -4358 -3302 -0220 -2537 -0001  4420  7615 -3938 -2327 -1963 -3696  6490  2879  1619  4571 
 -7084 -6753 -4708 -5953 -4416  0074  4951 -6794 -5906 -4848 -6944  3375 -2563 -3921  1108 
 -9344 -9346 -6879 -8310 -7380 -4335  0336 -8645 -8590 -8283 -8783 -2543 -5827 -6713 -4222 
  1000  1358  2580  1711  3302  5687  7433  1093  1972  2267  1192  6878  4086  3316  5097 
  1068  1000  2432  1636  3192  5363  7106  1020  1950  1956  1276  6363  3958  2888  4654 
  0943  0492  1000  0951  1394  3468  5682  0556  0956  0996  0582  4704  1769  1694  3254 
  0639  0848  1674  1000  2085  4402  6613  0844  1488  1323  0732  5313  3487  2222  4638 
  0437  0620  1223  0741  1000  3357  5847  0610  0830  0977  0550  4668  2063  2081  3733 
  0193  0297  0678  0408  0594  1000  3712  0347  0342  0447  0240  2756  0734  0793  1824 
  0130  0149  0372  0266  0330  0496  1000  0151  0168  0221  0153  0860  0490  0378  0626 
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
   200   300   400   500   600   700   100
   200   300   400   500   600   700   800	 
   100   200   300   400   500   600   700		  
   100   000 10000   100   000   147
  1        mask of m (zero makes it free)
  2              Model Number (here set for 1 operation) illustrates an asymmetric case.
  7 15           No. of Rows and Cols. Data from Birnbaum & Sotoodeh (1991) Psych Science
  0000   240  4184  2063  4554  8390  9394 -0187  3111  3277 -0052  8722  6631  5055  7292 
 -0353 -0105  3956  1774  4500  7405  8743 -0020  2670  3008  0033  8571  6180  5351  6846 
 -4447 -3700  0000 -0347  0954  5128  7604 -4460 -1124 -1739 -3614  6230  2680  1230  4616 
 -2537 -1799  1224  0000  2905  6642  8285 -1886  1382   700 -2395  7424  4947  3107  6257 
 -4358 -3302 -0220 -2537 -0001  4420  7615 -3938 -2327 -1963 -3696  6490  2879  1619  4571 
 -7084 -6753 -4708 -5953 -4416  0074  4951 -6794 -5906 -4848 -6944  3375 -2563 -3921  1108 
 -9344 -9346 -6879 -8310 -7380 -4335  0336 -8645 -8590 -8283 -8783 -2543 -5827 -6713 -4222 
  1000  1358  2580  1711  3302  5687  7433  1093  1972  2267  1192  6878  4086  3316  5097 
  1068  1000  2432  1636  3192  5363  7106  1020  1950  1956  1276  6363  3958  2888  4654 
  0943  0492  1000  0951  1394  3468  5682  0556  0956  0996  0582  4704  1769  1694  3254 
  0639  0848  1674  1000  2085  4402  6613  0844  1488  1323  0732  5313  3487  2222  4638 
  0437  0620  1223  0741  1000  3357  5847  0610  0830  0977  0550  4668  2063  2081  3733 
  0193  0297  0678  0408  0594  1000  3712  0347  0342  0447  0240  2756  0734  0793  1824 
  0130  0149  0372  0266  0330  0496  1000  0151  0168  0221  0153  0860  0490  0378  0626 
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
   200   300   400   500   600   700   100
   200   300   400   500   600   700   800	 
   100   200   300   400   500   600   700		  
   100   000 10000   100   000   147
  0        mask of m (zero makes it free)
  2              Model Number (here set for 1 operation) illustrates an asymmetric case.
  7 15           No. of Rows and Cols. Data from Birnbaum & Sotoodeh (1991) Psych Science
  0000   240  4184  2063  4554  8390  9394 -0187  3111  3277 -0052  8722  6631  5055  7292 
 -0353 -0105  3956  1774  4500  7405  8743 -0020  2670  3008  0033  8571  6180  5351  6846 
 -4447 -3700  0000 -0347  0954  5128  7604 -4460 -1124 -1739 -3614  6230  2680  1230  4616 
 -2537 -1799  1224  0000  2905  6642  8285 -1886  1382   700 -2395  7424  4947  3107  6257 
 -4358 -3302 -0220 -2537 -0001  4420  7615 -3938 -2327 -1963 -3696  6490  2879  1619  4571 
 -7084 -6753 -4708 -5953 -4416  0074  4951 -6794 -5906 -4848 -6944  3375 -2563 -3921  1108 
 -9344 -9346 -6879 -8310 -7380 -4335  0336 -8645 -8590 -8283 -8783 -2543 -5827 -6713 -4222 
  1000  1358  2580  1711  3302  5687  7433  1093  1972  2267  1192  6878  4086  3316  5097 
  1068  1000  2432  1636  3192  5363  7106  1020  1950  1956  1276  6363  3958  2888  4654 
  0943  0492  1000  0951  1394  3468  5682  0556  0956  0996  0582  4704  1769  1694  3254 
  0639  0848  1674  1000  2085  4402  6613  0844  1488  1323  0732  5313  3487  2222  4638 
  0437  0620  1223  0741  1000  3357  5847  0610  0830  0977  0550  4668  2063  2081  3733 
  0193  0297  0678  0408  0594  1000  3712  0347  0342  0447  0240  2756  0734  0793  1824 
  0130  0149  0372  0266  0330  0496  1000  0151  0168  0221  0153  0860  0490  0378  0626 
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  
   200   300   400   500   600   700   100
   200   300   400   500   600   700   800	 
   100   200   300   400   500   600   700		  
   100   000 10000   100   000   147
  1        mask of m (zero makes it free)
Other parameters: AD,BD,CD,AR,BR,CR (i.e. m)
references:  
Birnbaum, M. H. (1978). Differences and ratios in psychological measurement. 
      In N.J. Castellan & F. Restle, (Eds.), Cognitive Theory, Vol. 3. 
	   Hillsdale, N.J.:  Lawrence Erlbaum Associates, p. 33-74. .
Birnbaum, M. H. (1980). Comparison of two theories of "ratio" and "difference" 
      judgments. Journal of Experimental Psychology: General, 109, 304-319.
Birnbaum, M. H., & Sotoodeh, Y. (1991). 
	 Measurement of stress:  Scaling the magnitudes of life changes. 
	 Psychological Science, 2, 236-243.