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Mplus 8 Bayes: Setting prior on NEW p... |
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Hi, i'm trying to estimate a multi-level autoregressive (AR1) model using ESTIMATOR = BAYES; i'm trying to introduce a NEW parameter "icc" (in section MODEL CONSTRAINT) that is computed from two model parameters labeled "muvar" and "q" in the MODEL statement. On this new parameter "icc" i want to set a prior via MODEL PRIORS. Error message is: *** ERROR in MODEL PRIORS command Unknown variable or parameter label: ICC Syntax is: VARIABLE: NAMES = pid p x; MISSING = .; CLUSTER = pid; USEVAR = x; LAGGED = x(1); ANALYSIS: TYPE = TWOLEVEL; ESTIMATOR = BAYES; PROC = 1; CHAINS = 1; BITER = 500000 0; THIN = 1; BCONVERGENCE = 0.001; POINT = MODE; MODEL: %WITHIN% x ON x&1 (a); x (q); %BETWEEN% x (muvar); [x] (mu); MODEL CONSTRAINT: NEW (icc); icc = muvar / ( muvar + q/(1-a^2) ); MODEL PRIORS: a ~ N(0.500,1000); mu ~ N(500,1000); icc ~ N(0.5,0); OUTPUT: TECH1 TECH8 STDYX; |
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Mplus does not (yet) allow priors on NEW parameters. |
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