___________________________________________________________________
 |                                                                 |
 |                                ROCM22                           |
 |_________________________________________________________________|

 MEANING: NONMEM read-only common
 CONTEXT: PRED routine

 USAGE:
 COMMON /ROCM22/ OMEGA(LVR,LVR)
 (If double precision is to be used):
 DOUBLE PRECISION OMEGA
 (If single precision is to be used):
 REAL OMEGA

 The value of LVR must  be  the  same  as  that  found  in  file  SIZES
 (See sizes).

 DISCUSSION:

  OMEGA
      The current value of OMEGA being used.

 The current value of SIGMA is also located in this common as follows:
 SIGMA(I,J)=OMEGA(NETAS_+I,NETAS_+J)
 NETAS_ is found in ROCM35 (See rocm35).

 At run and problem initialization and at problem finalization use  the
 value in ROCM6 (See rocm6).

 When an initial estimate is being computed, the  value  is  just  that
 found in ROCM6 at problem initialization (when ICALL=1).

 EXAMPLE:

 Compute individual weighted residuals using a slope-intercept residual
 error model:

 $ERROR
 Y=F+EPS(1)+F*EPS(2)
 IF (COMACT.GE.1) THEN
    STD=SQRT(SIGMA(1)+F**2*SIGMA(2))
    IWRES=(DV-F)/STD
 ENDIF

 REFERENCES: None.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     


  
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