MIXED
  hamdelt  WITH week lnimi lndmi
  /FIXED = week lnimi lndmi 
  /METHOD = ML
  /PRINT = SOLUTION TESTCOV
 /RANDOM INTERCEPT week  | SUBJECT(id) COVTYPE(UN) .

AGGREGATE
  /OUTFILE=*
  MODE=ADDVARIABLES
  /BREAK=id
  /lnimi_mean = MEAN(lnimi) /lndmi_mean = MEAN(lndmi).

COMPUTE lnimi_dev = lnimi - lnimi_mean .
COMPUTE lndmi_dev = lndmi - lndmi_mean .
EXECUTE .

MIXED
  hamdelt  WITH week lnimi_mean lndmi_mean lnimi_dev lndmi_dev
  /FIXED = week lnimi_mean lndmi_mean lnimi_dev lndmi_dev
  /METHOD = ML
  /PRINT = SOLUTION TESTCOV
 /RANDOM INTERCEPT week  | SUBJECT(id) COVTYPE(UN) .