! simulate two-wave data on alcohol dependence for male MZ & DZ pairs
 
 
 The following MX script lines were read for group  1
 
 #NG 1
  Note: #NGroup set number of groups to 1
  
 #DEFINE NVAR 2
 #DEFINE NVAR2 4
 #DEFINE MAXTHRES 1 ! MAX NUMBER OF THRESHOLDS FOR ANY DIMENSION
 DATA SIMULATION
  CALCULATION GROUP
  BEGIN MATRICES;
  X LO NVAR NVAR ! ADDITIVE GENETIC CHOLESKY
  Y LO NVAR NVAR ! SHARED ENVIRONMENTAL CHOLESKY
  Z LO NVAR NVAR ! NON-SHARED ENVIRONMENTAL CHOLESKY
  N FU 1 NVAR2   ! MATRIX TO STORE NUMBER OF THRESHOLDS FOR EACH DIMENSION
  M FU 1 NVAR2   ! MATRIX OF MEANS
  S FU MAXTHRES NVAR2 ! THRESHOLDS
  G DI 1 1
  U DI 1 1
  END MATRICES;
  MAT G 0.5
  MAT U 1000
  MAT X
  0.7071
  0.7071 0.0
  MAT Y
  0.3
  0.3 0.0
  MAT Z
  0.6403
  0.4528 0.4528
  MAT N 1 1 1 1
  MAT M 0 0 0 0
  MAT S
  0.67449 0.67449 0.67449 0.67449
  BEGIN ALGEBRA;
  A=X*X';
  C=Y*Y';
  E=Z*Z';
  P=A+C+E;
  R=P       | G@A+C  _
    G@A'+C' | P ;
  Q = \ALLINT (R_M_N_S);
  V = U@Q;
  END ALGEBRA;
  OPT FUNC=1.E-12
  WRITE Q XOUT2526DZ.REC
 ! opt mxq=out2526 
  END GROUP
  
  
  PARAMETER SPECIFICATIONS
  
  No free parameters specified
  
  
  
  
  
  MX PARAMETER ESTIMATES
  
  GROUP NUMBER: 1
  
data simulation                                                                                                                 
  
 Estimates of matrix Q will be written to file:
  out2526dz.rec                   
  
  
  MATRIX A
 This is a computed FULL matrix of order    2 by    2
  [=X*X']
          1       2
 1   0.5000  0.5000
 2   0.5000  0.5000
  
  MATRIX C
 This is a computed FULL matrix of order    2 by    2
  [=Y*Y']
          1       2
 1   0.0900  0.0900
 2   0.0900  0.0900
  
  MATRIX E
 This is a computed FULL matrix of order    2 by    2
  [=Z*Z']
          1       2
 1   0.4100  0.2899
 2   0.2899  0.4101
  
  MATRIX G
 This is a DIAGONAL matrix of order    1 by    1
          1
 1   0.5000
  
  MATRIX M
 This is a FULL matrix of order    1 by    4
          1       2       3       4
 1   0.0000  0.0000  0.0000  0.0000
  
  MATRIX N
 This is a FULL matrix of order    1 by    4
          1       2       3       4
 1   1.0000  1.0000  1.0000  1.0000
  
  MATRIX P
 This is a computed FULL matrix of order    2 by    2
  [=A+C+E]
             1          2
 1      1.0000     0.8799
 2      0.8799     1.0000
  
  MATRIX Q
 This is a computed FULL matrix of order    1 by   16
  [=\ALLINT(R_M_N_S)]
          1       2       3       4       5       6       7       8       9
 1   0.5195  0.0378  0.0378  0.0924  0.0378  0.0047  0.0047  0.0153  0.0378
 
         10      11      12      13      14      15      16
 1   0.0047  0.0047  0.0153  0.0924  0.0153  0.0153  0.0646
  
  MATRIX R
 This is a computed FULL matrix of order    4 by    4
  [=P|G@A+C_G@A'+C'|P]
             1          2          3          4
 1      1.0000     0.8799     0.3400     0.3400
 2      0.8799     1.0000     0.3400     0.3400
 3      0.3400     0.3400     1.0000     0.8799
 4      0.3400     0.3400     0.8799     1.0000
  
  MATRIX S
 This is a FULL matrix of order    1 by    4
          1       2       3       4
 1   0.6745  0.6745  0.6745  0.6745
  
  MATRIX U
 This is a DIAGONAL matrix of order    1 by    1
             1
 1   1000.0000
  
  MATRIX V
 This is a computed FULL matrix of order    1 by   16
  [=U@Q]
             1          2          3          4          5          6          7
 1    519.5187    37.8212    37.8055    92.3817    37.8179     4.6910     4.6907
 
             8          9         10         11         12         13         14
 1     15.2703    37.8153     4.6918     4.6914    15.2792    92.3601    15.2865
 
            15         16
 1     15.2787    64.6498
  
  MATRIX X
 This is a LOWER TRIANGULAR matrix of order    2 by    2
          1       2
 1   0.7071
 2   0.7071  0.0000
  
  MATRIX Y
 This is a LOWER TRIANGULAR matrix of order    2 by    2
          1       2
 1   0.3000
 2   0.3000  0.0000
  
  MATRIX Z
 This is a LOWER TRIANGULAR matrix of order    2 by    2
          1       2
 1   0.6403
 2   0.4528  0.4528
  
 Your model has    0 estimated parameters and      0 Observed statistics
  
 Chi-squared fit of model >>>>>>>     0.000
 Degrees of freedom >>>>>>>>>>>>>         0
  Probability incalculable
 Akaike's Information Criterion >     0.000
 RMSEA >>>>>>>>>>>>>>>>>>>>>>>>>>     0.000
  
 This problem used  0.3% of my workspace
  
 Task                     Time elapsed (DD:HH:MM:SS)
 Reading script & data      0: 0: 0: 0.05
 Execution                  0: 0: 0: 0.12
 TOTAL                      0: 0: 0: 0.17
  
 Total number of warnings issued: 0
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